1. Develop a thought experiment that attempts to uncover hidden assumptions about human freedom. 2. Find a paragraph from a book, magazine, ect. First, tell whether there are claims in the paragraph. If there are, identify the types of claims (descriptive, normative, a priori, a posteriori) in the paragraph

1. Develop a thought experiment that attempts to uncover hidden assumptions about human freedom. 2. Find a paragraph from a book, magazine, ect. First, tell whether there are claims in the paragraph. If there are, identify the types of claims (descriptive, normative, a priori, a posteriori) in the paragraph

Let us think of a thought experiment that wants to … Read More...
(b) Based on the lessons learned, best practices and any additional steps you came up with in part (a), what if project manager X then got a job at Bank of America. Would it be possible for him/her to implement lean in the banking industry based on experience from the previous positions held at the automotive plant and the pharmaceutical company? Please state yes or no and explain the logic clearly for the same. Also, explain the steps that project manager X could take to implement lean at Bank of America (in the service industry) [10 points] You can refer to your class notes and will also have to do research online for both parts (a) and (b). Please state all the references used for each question.

(b) Based on the lessons learned, best practices and any additional steps you came up with in part (a), what if project manager X then got a job at Bank of America. Would it be possible for him/her to implement lean in the banking industry based on experience from the previous positions held at the automotive plant and the pharmaceutical company? Please state yes or no and explain the logic clearly for the same. Also, explain the steps that project manager X could take to implement lean at Bank of America (in the service industry) [10 points] You can refer to your class notes and will also have to do research online for both parts (a) and (b). Please state all the references used for each question.

Yes, lean can be applied to the banking industry.   … Read More...
A young guy just graduating college scored a good job and has a job that will allow him to buy a new car.he was heartbroken to find out the tesla roadster is out of his price range and out of production.he lives near a tesla dealership and has been a fan of the idea of an electric car, but he is not sure it would work for him.he needs your help in evaluating decision. He drives about 20,000 miles a year, and his commute to work is 30 miles each way and was thinking he could even keep his 1998 pontiac sunfire around as a second.it only costs about 300$ a year to keep insurance on the sunfire.he was surprised that the insurance and related fees were really pretty much the same.he knows he will be bound by the 300 miles range of the electric , but he likes the idea of them. If he gets a Tesla, he will plan on just keeping the sunfire too.an added benefits of going with the Buick is that he could just have one car around.if it would meet his needs, he is willing to rent a car if he goes on a long trip. 1) Which is cheaper?is it financially better to keep the sunfire around and get a tesla S, or should be get the buick? 2) If he was to finance his new car purchase a 0 % interest for four years, what is the total cost of fuel/power, vechile, and oil changes at 5,000 miles? 3) His garage has a 15amp 120 volt plug, but for $750 he could get a 50 amp 220 plug added.Tesla claims 48 hours charging time for 15 amp plug in and a 50 amp plug in.is it worth the cost and can be save enough to justify this extra cost if he goes electric. Here is the information he has to compare the two cars. Tesla mOdel S 4 door 85 k Wh battery 85

A young guy just graduating college scored a good job and has a job that will allow him to buy a new car.he was heartbroken to find out the tesla roadster is out of his price range and out of production.he lives near a tesla dealership and has been a fan of the idea of an electric car, but he is not sure it would work for him.he needs your help in evaluating decision. He drives about 20,000 miles a year, and his commute to work is 30 miles each way and was thinking he could even keep his 1998 pontiac sunfire around as a second.it only costs about 300$ a year to keep insurance on the sunfire.he was surprised that the insurance and related fees were really pretty much the same.he knows he will be bound by the 300 miles range of the electric , but he likes the idea of them. If he gets a Tesla, he will plan on just keeping the sunfire too.an added benefits of going with the Buick is that he could just have one car around.if it would meet his needs, he is willing to rent a car if he goes on a long trip. 1) Which is cheaper?is it financially better to keep the sunfire around and get a tesla S, or should be get the buick? 2) If he was to finance his new car purchase a 0 % interest for four years, what is the total cost of fuel/power, vechile, and oil changes at 5,000 miles? 3) His garage has a 15amp 120 volt plug, but for $750 he could get a 50 amp 220 plug added.Tesla claims 48 hours charging time for 15 amp plug in and a 50 amp plug in.is it worth the cost and can be save enough to justify this extra cost if he goes electric. Here is the information he has to compare the two cars. Tesla mOdel S 4 door 85 k Wh battery 85

 
Assignment One Suggested Due Date: July 17th In this assignment you will read three articles You will answer questions about Hayek, Lucas, and Mankiw et. al. which consider just those particular articles. Then at the end of the assignment there is a cluster of questions that deal with both Lucas and Mankiw et al where you will have an opportunity to compare and contrast those two articles. When you have completed the assignment, place it in the appropriate drop box in WTClass. Hayek: The Use of Knowledge in Society http://www.econlib.org/library/Essays/hykKnw1.html Adapted from Michael K. Salemi “The Use of Knowledge in Society” F. A. Hayek Discussion Questions 1.1. “The peculiar character of the problem of a rational economic order is determined precisely by the fact that the knowledge of the circumstances of which we must make use never exists in concentrated or integrated form, but solely as the dispersed bits of incomplete and frequently contradictory knowledge which all the separate individuals possess (H.3)” a. What does Hayek mean by a “rational economic order”? b. What does Hayek mean by “dispersed bits of incomplete and frequently contradictory knowledge”? c. Why is Hayek critical of the common assumptions in economic analysis that buyers, sellers, producers and the economist all know every relevant thing about the economy? d. What, in summary, does Hayek mean by the quoted statement? 1.2. What, according to Hayek, is the information needed to operate effectively in a complex market economy? a. What does Hayek mean by “planning”? b. What is the minimum information needed by economic planners and individuals? c. Does the minimum differ for planners and for individuals? How? Why? d. What happens when some individuals possess more information than other individuals? e. What does Hayek mean when he says (H.16) “…the sort of knowledge with which I have been concerned is knowledge of the kind which by its nature cannot enter into statistics and therefore cannot be conveyed to any central authority in statistical form”? f. Why, according to Hayek, can the “information problem” be solved by “the price system”? 1.3. Why, according to Hayek, is the true function of the price system the communication of information? a. Why does Hayek use the term ‘marvel’ in his discussion of the economy of knowledge? b. What does Hayek mean when he says (H.26) “…man has been able to develop that division of labor on which our civilization is based because he happened to stumble upon a method which made it possible”? Read Robert Lucas’ “Some Macroeconomics for the 21st Century” in the Journal of Economic Perspectives. (Skip the appendix.) All four of these links go to the same article. Some of the links might not be accessible to you, but I think that at least one of them should work for all of you. https://www.aeaweb.org/articles.php?doi=10.1257/jep.14.1.159 http://www.jstor.org/stable/2647059 http://www.econ.psu.edu/~aur10/Econ%20570%20Fall%202009/Lucas%20JEP%202000.pdf http://faculty.georgetown.edu/mh5/class/econ102/readings/Macro_21st_Century.pdf 1. According to Lucas, why has the world’s economy grown so much since 1960? 2. According to Lucas, why do some nations grow faster than others? 3. According to Lucas, why will growth and inequality decrease in the next 100 years? 4. Is Lucas’ model in this paper “economics?” Read Greg Mankiw, Romer and Wiel’s article in The Quarterly Journal of Economics. http://www.econ.nyu.edu/user/debraj/Courses/Readings/MankiwRomerWeil.pdf 1. Many economists think the Solow Growth Model is of limited use. (One of my professors at OU stated that it took economists 50 years to figure out that their growth model has nothing to do with growth.) But does the Solow model give “…the right answer to the questions it is designed to address?” 2. Why is human capital important when testing the Solow model against the data? 3. Explain how the authors conclude that the incomes of the world’s nations are converging? Now that you’ve answered questions about Lucas and Mankiw et al separately, consider this question: Both of these papers develop the notion that the economies of the world’s nations will tend to “converge” over time. Compare and contrast the way(s) in which the papers advance the idea of convergence. Assignment Two Due Date July 24th This assignment is very straight forward. You’ll read two papers and answer questions about each of them. Read Krugman’s paper on unemployment http://www.kc.frb.org/PUBLICAT/ECONREV/EconRevArchive/1994/4Q94KRUG.pdf 1. What is the difference between structural and cyclical unemployment? In this context, what is the difference between Europe and the US? What is the evidence that Krugman uses to back his opinion? 2. What is the natural rate of unemployment? Why is it higher/rising in Europe? Again, what is the evidence? 3. What is the relationship between the rising unemployment in Europe and the rise in inequality in the US. (What does Krugman mean by inequality?) 4. What is NOT to blame for either the rise in unemployment or inequality? 5. What policies, if any, can be put into place to combat rising inequality/unemployment? 6. Are you convinced by Krugman’s argument which rules out globalization as the likely cause for high European unemployment and high US wage inequality? 7. Consider Table 2 in Krugman. Why does Krugman include Table 2 in his paper? In other words, what point is strengthened by the data in Table 2 and why is it crucial to Krugman’s larger thesis? NOW, recreate the data for Table 2 for either the UK or US for the latest year possible. Has anything changed as a result of the Great Recession? Read Thomas Sargent’s paper about the credibility of “Reaganonomics.” http://minneapolisfed.contentdm.oclc.org/cdm/ref/collection/p15334coll1/id/366 http://minneapolisfed.contentdm.oclc.org/cdm/singleitem/collection/p15334coll1/id/366/rec/1 You might like this: http://www.ispot.tv/ad/7Lj9/ally-bank-predictions-featuring-thomas-sargent 1. What is a dynamic game? 2. Why should we think of monetary and fiscal policy as dynamic game? Who are the players and what are the strategies? 3. When are government budgets inflationary? (Again, think in terms of a game.) 4. What are the consequences if the monetary authority does not coordinate with fiscal policy agents? 5. Has Sargent done of good job characterizing the interplay between policymakers in the government, the central bank, and the public? 6. What is the connection between policy coordination and credibility? 7. Why, according to Sargent, were Reagan’s fiscal and monetary policy regimes “incredible?” Explain carefully. Assignment Three Due Date July 31 Read Taylor, Miskin, Obstfeld and Rogoff. Answer the questions for each article, then answer the final cluster that requires you to consider Miskin, Obstfeld and Rogoff. Suggested due date: January 2nd. Read John Taylor’s article about monetary transmission mechanisms. http://web.econ.unito.it/bagliano/ecmon_readings/taylor_jep95.pdf Also, to understand traditional monetary policy, listen to this: http://www.econtalk.org/archives/2008/08/john_taylor_on.html These questions refer to the article, not the podcast. 1. How does monetary policy (or changes in monetary policy) affect output and inflation? In other words, what is the monetary policy transmission mechanism? 2. What is the importance of financial market prices in Taylor’s view? 3. What is the importance of rational expectations and rigidities in the prices of labor and goods? 4. What is a reaction function? Why is a reaction function important? 5. What is an “optimal monetary policy rule?” 6. Has the monetary transmission mechanism changed? How? 7. What are the criticisms of Taylor’s views? How does he respond? What do you think? Read Mishkin’s article about global financial instability. http://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.13.4.3 1. What is a financial crisis? 2. How did adverse selection and moral hazard contribute to the financial crisis in Mexico and East Asia in the 1990s? What are adverse selection and moral hazard? 3. Did irresponsible monetary and fiscal policy contribute to the crisis in the 90s? Why or why not? 4. How is it possible for the IMF to help in a crisis when a domestic central bank might not be able to help. 5. What should the US learn (or have learned??) from the crisis in the 90s? Read Rogoff’s article about global financial instability. http://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.13.4.21 http://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.13.4.21 Answer the questions and place the answers in the appropriate drop box in WTClass. 1. According to Rogoff, is the status quo in international lending viable or not? Explain. 2. Can the IMF handle international financial crises? Why or why not? 3. Rogoff gives six solutions to save the global financial system (deep pockets lender of last resort, an international financial crisis manager, an international bankruptcy court, an international regulator, international deposit insurance corporation, and a world monetary authority.) What is wrong with all of these? 4. Can developing economies cope with speculative capital flows without help? Explain. 5. What will be (should be) the role that equity financing play in developing country projects? Read Obstfeld on Global Capital Markets: http://www.nber.org/papers/w6559.pdf 1. Look at table 1 and figure 1. How does Obstfeld use the data in that table to suggest that 1) markets became less open then more open in the 20th century. 2. What is the “openness trilemma?” What are the economic and/or policy trade-offs with having a global, open and integrated financial system? 3. How does economic integration impact a nation’s ability to tax capital? Can you think of some high profile cases in the news lately that illustrate this fact? (Hint: you should be able to.) 4. What is the international diversification puzzle? What market failures have arisen (if any) have arisen due to more integration and openness? Comparing Obstfeld, Miskin, and Rogoff 1. Would the authors’ advice about policies to reduce the costs of financial integration be the same? Why or why not? 2. Would the authors’ agree that we need an international regulatory body to stave off international financial crises? Why or why not? 3. What is your opinion? Is it good to have a global financial market? Why or why not? Assignment Four Due Date August 7 Straight forward assignment: Read and answer the questions. Read Arnold Kling’s history of the policies that created the great recession http://mercatus.org/publication/not-what-they-had-mind-history-policies-produced-financial-crisis-2008 1. Using only the executive summary, what does Kling think caused the Financial Crisis of 2008? (Use only one sentence.) 2. One page 5, what is “the fact?” and what does this “fact” mean to you? 3. Briefly summarize the four components of the Financial Crisis? 4. On page 10, Kling states, “These property bubbles (in the U.K. and Spain) cannot be blamed on U.S. policy.” How confident are you on that point? Is Kling wrong? 5. Kling’s matrix of causes, gives almost all weight to what two factors? What three factors are almost completely not responsible? 6. Many have blamed designer financial (my term) like CDS and CDO and the shadow banking system for the collapse. How do these fit into Kling’s narrative? 7. Outline the progression of policy that caused/responded to economic conditions in the 30s, 70s and 80s and 00s. 8. What role did the mortgage interest deduction have on housing market? 9. What institution invented and allowed the expansion of mortgage-backed securities? 10. What is regulatory arbitrage? 11. Why did the Basel agreement create an advantage for mortgage securitization? 12. Did the Federal Reserve (and presumably other regulatory agencies know and even encourage regulatory capital arbitrage? What author does Kling cite to establish this? 13. What did the 2002 modification of the Basel Rules do to capital requirements? (See figure 4) 14. Summarize the Shadow Regulatory Committee’s statement 160. 15. Did non market institutions, such as the IMF and Bernanke, think, in 2006, that financial innovation had make the banking sector more or less fragile? 16. What is time inconsistency? (You can look this up elsewhere.) 17. How might “barriers to entry” by related to “safety and soundness?” 18. A Curmudgeon is an old man who is easily annoyed and angered. He also complains a lot. (I had to look it up.) I think I’ll change my xbox gamertag to this word, but I’ll bet it is taken. 19. How did credit scoring and credit default swaps enlarge the mortgage securities market? 20. Why, up until 2007, did we think that monetary expansion was all that was needed to mitigate the impact of financial crises? 21. Suppose that financial markets are inherently unstable. What does this mean are two goals of regulation and regulators? 22. Why are type two errors so problematic? (Two reasons.) 23. How could we make the banking sector easy to fix? Assignment Five Due August 13 Read the linked lectures and answer the questions. Lecture 1 http://econlog.econlib.org/archives/2008/11/lectures_in_mac.html 1.1 Why do you think macroeconomic realities must be reconciled with microeconomic analysis? (This is not a rhetorical question, but it will be hard for you to answer. There is no “wrong” answer you could give. Just think about it for a few minutes.) Lecture 2 http://econlog.econlib.org/archives/2008/11/lectures_in_mac_1.html 2.1 Consider this article after you have read Hayek. How do prices and wages perform the function of “central planning?” 2.2 Kling makes that claim that, because most workers do not do manual labor anymore, the economy is different that it was in 1930. Assuming he is correct, do you think central planning would be harder today or easier? Why? Lecture 3 http://econlog.econlib.org/archives/2008/11/lectures_on_mac.html 3.1 Give a one sentence definition of structural unemployment, of frictional unemployment and of cyclical unemployment. Lecture 4 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_1.html 4.1 So, why does the economy adjust employment rather than wages? Lecture 5 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_2.html 5.1 Kling gives 5 reasons the DotCom recession was worse than the previous two recessions (at least in duration). Which reason do you think is the most compelling? Lecture 6 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_3.html 6.1 Why are Keynesian remedies (blunt fiscal and monetary policy measures) less appropriate in a post industrial economy, according to Kling? Lecture 7 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_4.html 7.1 Why is it so hard to separate finance and government, according to Kling? Lecture 8 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_5.html 8.1 Why is American Express Travelers Checks so interesting? Do credit cards work in a similar way? (I really don’t know the answer to this one. I just know that credit cards have made travelers checks obsolete.) Lecture 9. http://econlog.econlib.org/archives/2008/12/lectures_on_mac_6.html 9.1 According to this article, why do we have banks (financial sector or financial intermediation?) Lecture 10 http://econlog.econlib.org/archives/2008/12/lectures_on_mac_7.html 10.1 Why are banks better than barter, according to this leture? 10.2 Politics tends to favor bailouts of failed firms. Why is this exactly wrong?

Assignment One Suggested Due Date: July 17th In this assignment you will read three articles You will answer questions about Hayek, Lucas, and Mankiw et. al. which consider just those particular articles. Then at the end of the assignment there is a cluster of questions that deal with both Lucas and Mankiw et al where you will have an opportunity to compare and contrast those two articles. When you have completed the assignment, place it in the appropriate drop box in WTClass. Hayek: The Use of Knowledge in Society http://www.econlib.org/library/Essays/hykKnw1.html Adapted from Michael K. Salemi “The Use of Knowledge in Society” F. A. Hayek Discussion Questions 1.1. “The peculiar character of the problem of a rational economic order is determined precisely by the fact that the knowledge of the circumstances of which we must make use never exists in concentrated or integrated form, but solely as the dispersed bits of incomplete and frequently contradictory knowledge which all the separate individuals possess (H.3)” a. What does Hayek mean by a “rational economic order”? b. What does Hayek mean by “dispersed bits of incomplete and frequently contradictory knowledge”? c. Why is Hayek critical of the common assumptions in economic analysis that buyers, sellers, producers and the economist all know every relevant thing about the economy? d. What, in summary, does Hayek mean by the quoted statement? 1.2. What, according to Hayek, is the information needed to operate effectively in a complex market economy? a. What does Hayek mean by “planning”? b. What is the minimum information needed by economic planners and individuals? c. Does the minimum differ for planners and for individuals? How? Why? d. What happens when some individuals possess more information than other individuals? e. What does Hayek mean when he says (H.16) “…the sort of knowledge with which I have been concerned is knowledge of the kind which by its nature cannot enter into statistics and therefore cannot be conveyed to any central authority in statistical form”? f. Why, according to Hayek, can the “information problem” be solved by “the price system”? 1.3. Why, according to Hayek, is the true function of the price system the communication of information? a. Why does Hayek use the term ‘marvel’ in his discussion of the economy of knowledge? b. What does Hayek mean when he says (H.26) “…man has been able to develop that division of labor on which our civilization is based because he happened to stumble upon a method which made it possible”? Read Robert Lucas’ “Some Macroeconomics for the 21st Century” in the Journal of Economic Perspectives. (Skip the appendix.) All four of these links go to the same article. Some of the links might not be accessible to you, but I think that at least one of them should work for all of you. https://www.aeaweb.org/articles.php?doi=10.1257/jep.14.1.159 http://www.jstor.org/stable/2647059 http://www.econ.psu.edu/~aur10/Econ%20570%20Fall%202009/Lucas%20JEP%202000.pdf http://faculty.georgetown.edu/mh5/class/econ102/readings/Macro_21st_Century.pdf 1. According to Lucas, why has the world’s economy grown so much since 1960? 2. According to Lucas, why do some nations grow faster than others? 3. According to Lucas, why will growth and inequality decrease in the next 100 years? 4. Is Lucas’ model in this paper “economics?” Read Greg Mankiw, Romer and Wiel’s article in The Quarterly Journal of Economics. http://www.econ.nyu.edu/user/debraj/Courses/Readings/MankiwRomerWeil.pdf 1. Many economists think the Solow Growth Model is of limited use. (One of my professors at OU stated that it took economists 50 years to figure out that their growth model has nothing to do with growth.) But does the Solow model give “…the right answer to the questions it is designed to address?” 2. Why is human capital important when testing the Solow model against the data? 3. Explain how the authors conclude that the incomes of the world’s nations are converging? Now that you’ve answered questions about Lucas and Mankiw et al separately, consider this question: Both of these papers develop the notion that the economies of the world’s nations will tend to “converge” over time. Compare and contrast the way(s) in which the papers advance the idea of convergence. Assignment Two Due Date July 24th This assignment is very straight forward. You’ll read two papers and answer questions about each of them. Read Krugman’s paper on unemployment http://www.kc.frb.org/PUBLICAT/ECONREV/EconRevArchive/1994/4Q94KRUG.pdf 1. What is the difference between structural and cyclical unemployment? In this context, what is the difference between Europe and the US? What is the evidence that Krugman uses to back his opinion? 2. What is the natural rate of unemployment? Why is it higher/rising in Europe? Again, what is the evidence? 3. What is the relationship between the rising unemployment in Europe and the rise in inequality in the US. (What does Krugman mean by inequality?) 4. What is NOT to blame for either the rise in unemployment or inequality? 5. What policies, if any, can be put into place to combat rising inequality/unemployment? 6. Are you convinced by Krugman’s argument which rules out globalization as the likely cause for high European unemployment and high US wage inequality? 7. Consider Table 2 in Krugman. Why does Krugman include Table 2 in his paper? In other words, what point is strengthened by the data in Table 2 and why is it crucial to Krugman’s larger thesis? NOW, recreate the data for Table 2 for either the UK or US for the latest year possible. Has anything changed as a result of the Great Recession? Read Thomas Sargent’s paper about the credibility of “Reaganonomics.” http://minneapolisfed.contentdm.oclc.org/cdm/ref/collection/p15334coll1/id/366 http://minneapolisfed.contentdm.oclc.org/cdm/singleitem/collection/p15334coll1/id/366/rec/1 You might like this: http://www.ispot.tv/ad/7Lj9/ally-bank-predictions-featuring-thomas-sargent 1. What is a dynamic game? 2. Why should we think of monetary and fiscal policy as dynamic game? Who are the players and what are the strategies? 3. When are government budgets inflationary? (Again, think in terms of a game.) 4. What are the consequences if the monetary authority does not coordinate with fiscal policy agents? 5. Has Sargent done of good job characterizing the interplay between policymakers in the government, the central bank, and the public? 6. What is the connection between policy coordination and credibility? 7. Why, according to Sargent, were Reagan’s fiscal and monetary policy regimes “incredible?” Explain carefully. Assignment Three Due Date July 31 Read Taylor, Miskin, Obstfeld and Rogoff. Answer the questions for each article, then answer the final cluster that requires you to consider Miskin, Obstfeld and Rogoff. Suggested due date: January 2nd. Read John Taylor’s article about monetary transmission mechanisms. http://web.econ.unito.it/bagliano/ecmon_readings/taylor_jep95.pdf Also, to understand traditional monetary policy, listen to this: http://www.econtalk.org/archives/2008/08/john_taylor_on.html These questions refer to the article, not the podcast. 1. How does monetary policy (or changes in monetary policy) affect output and inflation? In other words, what is the monetary policy transmission mechanism? 2. What is the importance of financial market prices in Taylor’s view? 3. What is the importance of rational expectations and rigidities in the prices of labor and goods? 4. What is a reaction function? Why is a reaction function important? 5. What is an “optimal monetary policy rule?” 6. Has the monetary transmission mechanism changed? How? 7. What are the criticisms of Taylor’s views? How does he respond? What do you think? Read Mishkin’s article about global financial instability. http://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.13.4.3 1. What is a financial crisis? 2. How did adverse selection and moral hazard contribute to the financial crisis in Mexico and East Asia in the 1990s? What are adverse selection and moral hazard? 3. Did irresponsible monetary and fiscal policy contribute to the crisis in the 90s? Why or why not? 4. How is it possible for the IMF to help in a crisis when a domestic central bank might not be able to help. 5. What should the US learn (or have learned??) from the crisis in the 90s? Read Rogoff’s article about global financial instability. http://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.13.4.21 http://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.13.4.21 Answer the questions and place the answers in the appropriate drop box in WTClass. 1. According to Rogoff, is the status quo in international lending viable or not? Explain. 2. Can the IMF handle international financial crises? Why or why not? 3. Rogoff gives six solutions to save the global financial system (deep pockets lender of last resort, an international financial crisis manager, an international bankruptcy court, an international regulator, international deposit insurance corporation, and a world monetary authority.) What is wrong with all of these? 4. Can developing economies cope with speculative capital flows without help? Explain. 5. What will be (should be) the role that equity financing play in developing country projects? Read Obstfeld on Global Capital Markets: http://www.nber.org/papers/w6559.pdf 1. Look at table 1 and figure 1. How does Obstfeld use the data in that table to suggest that 1) markets became less open then more open in the 20th century. 2. What is the “openness trilemma?” What are the economic and/or policy trade-offs with having a global, open and integrated financial system? 3. How does economic integration impact a nation’s ability to tax capital? Can you think of some high profile cases in the news lately that illustrate this fact? (Hint: you should be able to.) 4. What is the international diversification puzzle? What market failures have arisen (if any) have arisen due to more integration and openness? Comparing Obstfeld, Miskin, and Rogoff 1. Would the authors’ advice about policies to reduce the costs of financial integration be the same? Why or why not? 2. Would the authors’ agree that we need an international regulatory body to stave off international financial crises? Why or why not? 3. What is your opinion? Is it good to have a global financial market? Why or why not? Assignment Four Due Date August 7 Straight forward assignment: Read and answer the questions. Read Arnold Kling’s history of the policies that created the great recession http://mercatus.org/publication/not-what-they-had-mind-history-policies-produced-financial-crisis-2008 1. Using only the executive summary, what does Kling think caused the Financial Crisis of 2008? (Use only one sentence.) 2. One page 5, what is “the fact?” and what does this “fact” mean to you? 3. Briefly summarize the four components of the Financial Crisis? 4. On page 10, Kling states, “These property bubbles (in the U.K. and Spain) cannot be blamed on U.S. policy.” How confident are you on that point? Is Kling wrong? 5. Kling’s matrix of causes, gives almost all weight to what two factors? What three factors are almost completely not responsible? 6. Many have blamed designer financial (my term) like CDS and CDO and the shadow banking system for the collapse. How do these fit into Kling’s narrative? 7. Outline the progression of policy that caused/responded to economic conditions in the 30s, 70s and 80s and 00s. 8. What role did the mortgage interest deduction have on housing market? 9. What institution invented and allowed the expansion of mortgage-backed securities? 10. What is regulatory arbitrage? 11. Why did the Basel agreement create an advantage for mortgage securitization? 12. Did the Federal Reserve (and presumably other regulatory agencies know and even encourage regulatory capital arbitrage? What author does Kling cite to establish this? 13. What did the 2002 modification of the Basel Rules do to capital requirements? (See figure 4) 14. Summarize the Shadow Regulatory Committee’s statement 160. 15. Did non market institutions, such as the IMF and Bernanke, think, in 2006, that financial innovation had make the banking sector more or less fragile? 16. What is time inconsistency? (You can look this up elsewhere.) 17. How might “barriers to entry” by related to “safety and soundness?” 18. A Curmudgeon is an old man who is easily annoyed and angered. He also complains a lot. (I had to look it up.) I think I’ll change my xbox gamertag to this word, but I’ll bet it is taken. 19. How did credit scoring and credit default swaps enlarge the mortgage securities market? 20. Why, up until 2007, did we think that monetary expansion was all that was needed to mitigate the impact of financial crises? 21. Suppose that financial markets are inherently unstable. What does this mean are two goals of regulation and regulators? 22. Why are type two errors so problematic? (Two reasons.) 23. How could we make the banking sector easy to fix? Assignment Five Due August 13 Read the linked lectures and answer the questions. Lecture 1 http://econlog.econlib.org/archives/2008/11/lectures_in_mac.html 1.1 Why do you think macroeconomic realities must be reconciled with microeconomic analysis? (This is not a rhetorical question, but it will be hard for you to answer. There is no “wrong” answer you could give. Just think about it for a few minutes.) Lecture 2 http://econlog.econlib.org/archives/2008/11/lectures_in_mac_1.html 2.1 Consider this article after you have read Hayek. How do prices and wages perform the function of “central planning?” 2.2 Kling makes that claim that, because most workers do not do manual labor anymore, the economy is different that it was in 1930. Assuming he is correct, do you think central planning would be harder today or easier? Why? Lecture 3 http://econlog.econlib.org/archives/2008/11/lectures_on_mac.html 3.1 Give a one sentence definition of structural unemployment, of frictional unemployment and of cyclical unemployment. Lecture 4 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_1.html 4.1 So, why does the economy adjust employment rather than wages? Lecture 5 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_2.html 5.1 Kling gives 5 reasons the DotCom recession was worse than the previous two recessions (at least in duration). Which reason do you think is the most compelling? Lecture 6 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_3.html 6.1 Why are Keynesian remedies (blunt fiscal and monetary policy measures) less appropriate in a post industrial economy, according to Kling? Lecture 7 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_4.html 7.1 Why is it so hard to separate finance and government, according to Kling? Lecture 8 http://econlog.econlib.org/archives/2008/11/lectures_on_mac_5.html 8.1 Why is American Express Travelers Checks so interesting? Do credit cards work in a similar way? (I really don’t know the answer to this one. I just know that credit cards have made travelers checks obsolete.) Lecture 9. http://econlog.econlib.org/archives/2008/12/lectures_on_mac_6.html 9.1 According to this article, why do we have banks (financial sector or financial intermediation?) Lecture 10 http://econlog.econlib.org/archives/2008/12/lectures_on_mac_7.html 10.1 Why are banks better than barter, according to this leture? 10.2 Politics tends to favor bailouts of failed firms. Why is this exactly wrong?

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Assignment 9 Due: 11:59pm on Friday, April 11, 2014 You will receive no credit for items you complete after the assignment is due. Grading Policy Problem 11.2 Part A Evaluate the dot product if and . Express your answer using two significant figures. ANSWER: Correct Part B Evaluate the dot product if and . Express your answer using two significant figures. ANSWER: Correct Problem 11.4  A B = 5 − 6 A i ^ j ^ = −9 − 5 B i ^ j ^ A  B  = -15  A B = −5 + 9 A i ^ j ^ = 5 + 6 B i ^ j ^ A  B  = 29 Part A What is the angle between vectors and if and ? Express your answer as an integer and include the appropriate units. ANSWER: Correct Part B What is the angle between vectors and if and ? Express your answer as an integer and include the appropriate units. ANSWER: Correct ± All Work and No Play Learning Goal: To be able to calculate work done by a constant force directed at different angles relative to displacement If an object undergoes displacement while being acted upon by a force (or several forces), it is said that work is being done on the object. If the object is moving in a straight line and the displacement and the force are known, the work done by the force can be calculated as , where is the work done by force on the object that undergoes displacement directed at angle relative to .  A B A = 2 + 5 ı ^  ^ B = −2 − 4 ı ^  ^  = 175  A B A = −6 + 2 ı ^  ^ B = − − 3 ı ^  ^  = 90 W =  = cos  F  s  F   s  W F  s  F  Note that depending on the value of , the work done can be positive, negative, or zero. In this problem, you will practice calculating work done on an object moving in a straight line. The first series of questions is related to the accompanying figure. Part A What can be said about the sign of the work done by the force ? ANSWER: Correct When , the cosine of is zero, and therefore the work done is zero. Part B cos  F  1 It is positive. It is negative. It is zero. There is not enough information to answer the question.  = 90  What can be said about the work done by force ? ANSWER: Correct When , is positive, and so the work done is positive. Part C The work done by force is ANSWER: Correct When , is negative, and so the work done is negative. Part D The work done by force is ANSWER: F  2 It is positive. It is negative. It is zero. 0 <  < 90 cos  F  3 positive negative zero 90 <  < 180 cos  F  4 Correct Part E The work done by force is ANSWER: Correct positive negative zero F  5 positive negative zero Part F The work done by force is ANSWER: Correct Part G The work done by force is ANSWER: Correct In the next series of questions, you will use the formula to calculate the work done by various forces on an object that moves 160 meters to the right. F  6 positive negative zero F  7 positive negative zero W =  = cos  F  s  F   s  Part H Find the work done by the 18-newton force. Use two significant figures in your answer. Express your answer in joules. ANSWER: Correct Part I Find the work done by the 30-newton force. Use two significant figures in your answer. Express your answer in joules. ANSWER: Correct Part J Find the work done by the 12-newton force. Use two significant figures in your answer. Express your answer in joules. W W = 2900 J W W = 4200 J W ANSWER: Correct Part K Find the work done by the 15-newton force. Use two significant figures in your answer. Express your answer in joules. ANSWER: Correct Introduction to Potential Energy Learning Goal: Understand that conservative forces can be removed from the work integral by incorporating them into a new form of energy called potential energy that must be added to the kinetic energy to get the total mechanical energy. The first part of this problem contains short-answer questions that review the work-energy theorem. In the second part we introduce the concept of potential energy. But for now, please answer in terms of the work-energy theorem. Work-Energy Theorem The work-energy theorem states , where is the work done by all forces that act on the object, and and are the initial and final kinetic energies, respectively. Part A The work-energy theorem states that a force acting on a particle as it moves over a ______ changes the ______ energy of the particle if the force has a component parallel to the motion. W = -1900 J W W = -1800 J Kf = Ki + Wall Wall Ki Kf Choose the best answer to fill in the blanks above: ANSWER: Correct It is important that the force have a component acting in the direction of motion. For example, if a ball is attached to a string and whirled in uniform circular motion, the string does apply a force to the ball, but since the string's force is always perpendicular to the motion it does no work and cannot change the kinetic energy of the ball. Part B To calculate the change in energy, you must know the force as a function of _______. The work done by the force causes the energy change. Choose the best answer to fill in the blank above: ANSWER: Correct Part C To illustrate the work-energy concept, consider the case of a stone falling from to under the influence of gravity. Using the work-energy concept, we say that work is done by the gravitational _____, resulting in an increase of the ______ energy of the stone. Choose the best answer to fill in the blanks above: distance / potential distance / kinetic vertical displacement / potential none of the above acceleration work distance potential energy xi xf ANSWER: Correct Potential Energy You should read about potential energy in your text before answering the following questions. Potential energy is a concept that builds on the work-energy theorem, enlarging the concept of energy in the most physically useful way. The key aspect that allows for potential energy is the existence of conservative forces, forces for which the work done on an object does not depend on the path of the object, only the initial and final positions of the object. The gravitational force is conservative; the frictional force is not. The change in potential energy is the negative of the work done by conservative forces. Hence considering the initial and final potential energies is equivalent to calculating the work done by the conservative forces. When potential energy is used, it replaces the work done by the associated conservative force. Then only the work due to nonconservative forces needs to be calculated. In summary, when using the concept of potential energy, only nonconservative forces contribute to the work, which now changes the total energy: , where and are the final and initial potential energies, and is the work due only to nonconservative forces. Now, we will revisit the falling stone example using the concept of potential energy. Part D Rather than ascribing the increased kinetic energy of the stone to the work of gravity, we now (when using potential energy rather than work-energy) say that the increased kinetic energy comes from the ______ of the _______ energy. Choose the best answer to fill in the blanks above: ANSWER: force / kinetic potential energy / potential force / potential potential energy / kinetic Kf + Uf = Ef = Wnc + Ei = Wnc + Ki + Ui Uf Ui Wnc Correct Part E This process happens in such a way that total mechanical energy, equal to the ______ of the kinetic and potential energies, is _______. Choose the best answer to fill in the blanks above: ANSWER: Correct Problem 11.7 Part A How much work is done by the force 2.2 6.6 on a particle that moves through displacement 3.9 Express your answer to two significant figures and include the appropriate units. ANSWER: work / potential force / kinetic change / potential sum / conserved sum / zero sum / not conserved difference / conserved F  = (− + i ^ ) N j ^ ! = r m i ^ Correct Part B How much work is done by the force 2.2 6.6 on a particle that moves through displacement 3.9 Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.10 A 1.8 book is lying on a 0.80- -high table. You pick it up and place it on a bookshelf 2.27 above the floor. Part A How much work does gravity do on the book? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Part B W = -8.6 J F  = (− + i ^ ) N j ^ ! = r m? j ^ W = 26 J kg m m Wg = -26 J How much work does your hand do on the book? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.12 The three ropes shown in the bird's-eye view of the figure are used to drag a crate 3.3 across the floor. Part A How much work is done by each of the three forces? Express your answers using two significant figures. Enter your answers numerically separated by commas. ANSWER: WH = 26 J m W1 , W2 , W3 = 1.9,1.2,-2.1 kJ Correct Enhanced EOC: Problem 11.16 A 1.2 particle moving along the x-axis experiences the force shown in the figure. The particle's velocity is 4.6 at . You may want to review ( pages 286 - 287) . For help with math skills, you may want to review: The Definite Integral Part A What is its velocity at ? Express your answer to two significant figures and include the appropriate units. Hint 1. How to approach the problem What is the work–kinetic energy theorem? What is the kinetic energy at ? How is the work done in going from to related to force shown in the graph? Using the work–kinetic energy theorem, what is the kinetic energy at ? What is the velocity at ? ANSWER: kg m/s x = 0m x = 2m x = 0 m x = 0 m x = 2 m x = 2 m x = 2 m Correct Part B What is its velocity at ? Express your answer to two significant figures and include the appropriate units. Hint 1. How to approach the problem What is the work–kinetic energy theorem? What is the kinetic energy at ? How is the work done in going from to related to force shown in the graph? Can the work be negative? Using the work–kinetic energy theorem, what is the kinetic energy at ? What is the velocity at ? ANSWER: Correct Work on a Sliding Block A block of weight sits on a frictionless inclined plane, which makes an angle with respect to the horizontal, as shown. A force of magnitude , applied parallel to the incline, pulls the block up the plane at constant speed. v = 6.2 ms x = 4m x = 0 m x = 0 m x = 4 m x = 4 m x = 4 m v = 4.6 ms w  F Part A The block moves a distance up the incline. The block does not stop after moving this distance but continues to move with constant speed. What is the total work done on the block by all forces? (Include only the work done after the block has started moving, not the work needed to start the block moving from rest.) Express your answer in terms of given quantities. Hint 1. What physical principle to use To find the total work done on the block, use the work-energy theorem: . Hint 2. Find the change in kinetic energy What is the change in the kinetic energy of the block, from the moment it starts moving until it has been pulled a distance ? Remember that the block is pulled at constant speed. Hint 1. Consider kinetic energy If the block's speed does not change, its kinetic energy cannot change. ANSWER: ANSWER: L Wtot Wtot = Kf − Ki L Kf − Ki = 0 Wtot = 0 Correct Part B What is , the work done on the block by the force of gravity as the block moves a distance up the incline? Express the work done by gravity in terms of the weight and any other quantities given in the problem introduction. Hint 1. Force diagram Hint 2. Force of gravity component What is the component of the force of gravity in the direction of the block's displacement (along the inclined plane)? Express your answer in terms of and . Hint 1. Relative direction of the force and the motion Remember that the force of gravity acts down the plane, whereas the block's displacement is directed up the plane. ANSWER: Wg L w w  ANSWER: Correct Part C What is , the work done on the block by the applied force as the block moves a distance up the incline? Express your answer in terms of and other given quantities. Hint 1. How to find the work done by a constant force Remember that the work done on an object by a particular force is the integral of the dot product of the force and the instantaneous displacement of the object, over the path followed by the object. In this case, since the force is constant and the path is a straight segment of length up the inclined plane, the dot product becomes simple multiplication. ANSWER: Correct Part D What is , the work done on the block by the normal force as the block moves a distance up the inclined plane? Express your answer in terms of given quantities. Hint 1. First step in computing the work Fg|| = −wsin() Wg = −wLsin() WF F L F L WF = FL Wnormal L The work done by the normal force is equal to the dot product of the force vector and the block's displacement vector. The normal force and the block's displacement vector are perpendicular. Therefore, what is their dot product? ANSWER: ANSWER: Correct Problem 11.20 A particle moving along the -axis has the potential energy , where is in . Part A What is the -component of the force on the particle at ? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Part B What is the -component of the force on the particle at ? Express your answer to two significant figures and include the appropriate units. N  L = 0 Wnormal = 0 y U = 3.2y3 J y m y y = 0 m Fy = 0 N y y = 1 m ANSWER: Correct Part C What is the -component of the force on the particle at ? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.28 A cable with 25.0 of tension pulls straight up on a 1.08 block that is initially at rest. Part A What is the block's speed after being lifted 2.40 ? Solve this problem using work and energy. Express your answer with the appropriate units. ANSWER: Correct Fy = -9.6 N y y = 2 m Fy = -38 N N kg m vf = 8.00 ms Problem 11.29 Part A How much work does an elevator motor do to lift a 1500 elevator a height of 110 ? Express your answer with the appropriate units. ANSWER: Correct Part B How much power must the motor supply to do this in 50 at constant speed? Express your answer with the appropriate units. ANSWER: Correct Problem 11.32 How many energy is consumed by a 1.20 hair dryer used for 10.0 and a 11.0 night light left on for 16.0 ? Part A Hair dryer: Express your answer with the appropriate units. kg m Wext = 1.62×106 J s = 3.23×104 P W kW min W hr ANSWER: Correct Part B Night light: Express your answer with the appropriate units. ANSWER: Correct Problem 11.42 A 2500 elevator accelerates upward at 1.20 for 10.0 , starting from rest. Part A How much work does gravity do on the elevator? Express your answer with the appropriate units. ANSWER: Correct W = 7.20×105 J = 6.34×105 W J kg m/s2 m −2.45×105 J Part B How much work does the tension in the elevator cable do on the elevator? Express your answer with the appropriate units. ANSWER: Correct Part C Use the work-kinetic energy theorem to find the kinetic energy of the elevator as it reaches 10.0 . Express your answer with the appropriate units. ANSWER: Correct Part D What is the speed of the elevator as it reaches 10.0 ? Express your answer with the appropriate units. ANSWER: Correct 2.75×105 J m 3.00×104 J m 4.90 ms Problem 11.47 A horizontal spring with spring constant 130 is compressed 17 and used to launch a 2.4 box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on the surface is 0.15. Part A Use work and energy to find how far the box slides across the rough surface before stopping. Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.49 Truck brakes can fail if they get too hot. In some mountainous areas, ramps of loose gravel are constructed to stop runaway trucks that have lost their brakes. The combination of a slight upward slope and a large coefficient of rolling friction as the truck tires sink into the gravel brings the truck safely to a halt. Suppose a gravel ramp slopes upward at 6.0 and the coefficient of rolling friction is 0.45. Part A Use work and energy to find the length of a ramp that will stop a 15,000 truck that enters the ramp at 30 . Express your answer to two significant figures and include the appropriate units. ANSWER: Correct N/m cm kg l = 53 cm kg m/s l = 83 m Problem 11.51 Use work and energy to find an expression for the speed of the block in the following figure just before it hits the floor. Part A Find an expression for the speed of the block if the coefficient of kinetic friction for the block on the table is . Express your answer in terms of the variables , , , , and free fall acceleration . ANSWER: Part B Find an expression for the speed of the block if the table is frictionless. Express your answer in terms of the variables , , , and free fall acceleration . ANSWER: μk M m h μk g v = M m h g Problem 11.57 The spring shown in the figure is compressed 60 and used to launch a 100 physics student. The track is frictionless until it starts up the incline. The student's coefficient of kinetic friction on the incline is 0.12 . Part A What is the student's speed just after losing contact with the spring? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Part B How far up the incline does the student go? Express your answer to two significant figures and include the appropriate units. ANSWER: v = cm kg 30 v = 17 ms Correct Score Summary: Your score on this assignment is 93.6%. You received 112.37 out of a possible total of 120 points. !s = 41 m

Assignment 9 Due: 11:59pm on Friday, April 11, 2014 You will receive no credit for items you complete after the assignment is due. Grading Policy Problem 11.2 Part A Evaluate the dot product if and . Express your answer using two significant figures. ANSWER: Correct Part B Evaluate the dot product if and . Express your answer using two significant figures. ANSWER: Correct Problem 11.4  A B = 5 − 6 A i ^ j ^ = −9 − 5 B i ^ j ^ A  B  = -15  A B = −5 + 9 A i ^ j ^ = 5 + 6 B i ^ j ^ A  B  = 29 Part A What is the angle between vectors and if and ? Express your answer as an integer and include the appropriate units. ANSWER: Correct Part B What is the angle between vectors and if and ? Express your answer as an integer and include the appropriate units. ANSWER: Correct ± All Work and No Play Learning Goal: To be able to calculate work done by a constant force directed at different angles relative to displacement If an object undergoes displacement while being acted upon by a force (or several forces), it is said that work is being done on the object. If the object is moving in a straight line and the displacement and the force are known, the work done by the force can be calculated as , where is the work done by force on the object that undergoes displacement directed at angle relative to .  A B A = 2 + 5 ı ^  ^ B = −2 − 4 ı ^  ^  = 175  A B A = −6 + 2 ı ^  ^ B = − − 3 ı ^  ^  = 90 W =  = cos  F  s  F   s  W F  s  F  Note that depending on the value of , the work done can be positive, negative, or zero. In this problem, you will practice calculating work done on an object moving in a straight line. The first series of questions is related to the accompanying figure. Part A What can be said about the sign of the work done by the force ? ANSWER: Correct When , the cosine of is zero, and therefore the work done is zero. Part B cos  F  1 It is positive. It is negative. It is zero. There is not enough information to answer the question.  = 90  What can be said about the work done by force ? ANSWER: Correct When , is positive, and so the work done is positive. Part C The work done by force is ANSWER: Correct When , is negative, and so the work done is negative. Part D The work done by force is ANSWER: F  2 It is positive. It is negative. It is zero. 0 <  < 90 cos  F  3 positive negative zero 90 <  < 180 cos  F  4 Correct Part E The work done by force is ANSWER: Correct positive negative zero F  5 positive negative zero Part F The work done by force is ANSWER: Correct Part G The work done by force is ANSWER: Correct In the next series of questions, you will use the formula to calculate the work done by various forces on an object that moves 160 meters to the right. F  6 positive negative zero F  7 positive negative zero W =  = cos  F  s  F   s  Part H Find the work done by the 18-newton force. Use two significant figures in your answer. Express your answer in joules. ANSWER: Correct Part I Find the work done by the 30-newton force. Use two significant figures in your answer. Express your answer in joules. ANSWER: Correct Part J Find the work done by the 12-newton force. Use two significant figures in your answer. Express your answer in joules. W W = 2900 J W W = 4200 J W ANSWER: Correct Part K Find the work done by the 15-newton force. Use two significant figures in your answer. Express your answer in joules. ANSWER: Correct Introduction to Potential Energy Learning Goal: Understand that conservative forces can be removed from the work integral by incorporating them into a new form of energy called potential energy that must be added to the kinetic energy to get the total mechanical energy. The first part of this problem contains short-answer questions that review the work-energy theorem. In the second part we introduce the concept of potential energy. But for now, please answer in terms of the work-energy theorem. Work-Energy Theorem The work-energy theorem states , where is the work done by all forces that act on the object, and and are the initial and final kinetic energies, respectively. Part A The work-energy theorem states that a force acting on a particle as it moves over a ______ changes the ______ energy of the particle if the force has a component parallel to the motion. W = -1900 J W W = -1800 J Kf = Ki + Wall Wall Ki Kf Choose the best answer to fill in the blanks above: ANSWER: Correct It is important that the force have a component acting in the direction of motion. For example, if a ball is attached to a string and whirled in uniform circular motion, the string does apply a force to the ball, but since the string's force is always perpendicular to the motion it does no work and cannot change the kinetic energy of the ball. Part B To calculate the change in energy, you must know the force as a function of _______. The work done by the force causes the energy change. Choose the best answer to fill in the blank above: ANSWER: Correct Part C To illustrate the work-energy concept, consider the case of a stone falling from to under the influence of gravity. Using the work-energy concept, we say that work is done by the gravitational _____, resulting in an increase of the ______ energy of the stone. Choose the best answer to fill in the blanks above: distance / potential distance / kinetic vertical displacement / potential none of the above acceleration work distance potential energy xi xf ANSWER: Correct Potential Energy You should read about potential energy in your text before answering the following questions. Potential energy is a concept that builds on the work-energy theorem, enlarging the concept of energy in the most physically useful way. The key aspect that allows for potential energy is the existence of conservative forces, forces for which the work done on an object does not depend on the path of the object, only the initial and final positions of the object. The gravitational force is conservative; the frictional force is not. The change in potential energy is the negative of the work done by conservative forces. Hence considering the initial and final potential energies is equivalent to calculating the work done by the conservative forces. When potential energy is used, it replaces the work done by the associated conservative force. Then only the work due to nonconservative forces needs to be calculated. In summary, when using the concept of potential energy, only nonconservative forces contribute to the work, which now changes the total energy: , where and are the final and initial potential energies, and is the work due only to nonconservative forces. Now, we will revisit the falling stone example using the concept of potential energy. Part D Rather than ascribing the increased kinetic energy of the stone to the work of gravity, we now (when using potential energy rather than work-energy) say that the increased kinetic energy comes from the ______ of the _______ energy. Choose the best answer to fill in the blanks above: ANSWER: force / kinetic potential energy / potential force / potential potential energy / kinetic Kf + Uf = Ef = Wnc + Ei = Wnc + Ki + Ui Uf Ui Wnc Correct Part E This process happens in such a way that total mechanical energy, equal to the ______ of the kinetic and potential energies, is _______. Choose the best answer to fill in the blanks above: ANSWER: Correct Problem 11.7 Part A How much work is done by the force 2.2 6.6 on a particle that moves through displacement 3.9 Express your answer to two significant figures and include the appropriate units. ANSWER: work / potential force / kinetic change / potential sum / conserved sum / zero sum / not conserved difference / conserved F  = (− + i ^ ) N j ^ ! = r m i ^ Correct Part B How much work is done by the force 2.2 6.6 on a particle that moves through displacement 3.9 Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.10 A 1.8 book is lying on a 0.80- -high table. You pick it up and place it on a bookshelf 2.27 above the floor. Part A How much work does gravity do on the book? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Part B W = -8.6 J F  = (− + i ^ ) N j ^ ! = r m? j ^ W = 26 J kg m m Wg = -26 J How much work does your hand do on the book? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.12 The three ropes shown in the bird's-eye view of the figure are used to drag a crate 3.3 across the floor. Part A How much work is done by each of the three forces? Express your answers using two significant figures. Enter your answers numerically separated by commas. ANSWER: WH = 26 J m W1 , W2 , W3 = 1.9,1.2,-2.1 kJ Correct Enhanced EOC: Problem 11.16 A 1.2 particle moving along the x-axis experiences the force shown in the figure. The particle's velocity is 4.6 at . You may want to review ( pages 286 - 287) . For help with math skills, you may want to review: The Definite Integral Part A What is its velocity at ? Express your answer to two significant figures and include the appropriate units. Hint 1. How to approach the problem What is the work–kinetic energy theorem? What is the kinetic energy at ? How is the work done in going from to related to force shown in the graph? Using the work–kinetic energy theorem, what is the kinetic energy at ? What is the velocity at ? ANSWER: kg m/s x = 0m x = 2m x = 0 m x = 0 m x = 2 m x = 2 m x = 2 m Correct Part B What is its velocity at ? Express your answer to two significant figures and include the appropriate units. Hint 1. How to approach the problem What is the work–kinetic energy theorem? What is the kinetic energy at ? How is the work done in going from to related to force shown in the graph? Can the work be negative? Using the work–kinetic energy theorem, what is the kinetic energy at ? What is the velocity at ? ANSWER: Correct Work on a Sliding Block A block of weight sits on a frictionless inclined plane, which makes an angle with respect to the horizontal, as shown. A force of magnitude , applied parallel to the incline, pulls the block up the plane at constant speed. v = 6.2 ms x = 4m x = 0 m x = 0 m x = 4 m x = 4 m x = 4 m v = 4.6 ms w  F Part A The block moves a distance up the incline. The block does not stop after moving this distance but continues to move with constant speed. What is the total work done on the block by all forces? (Include only the work done after the block has started moving, not the work needed to start the block moving from rest.) Express your answer in terms of given quantities. Hint 1. What physical principle to use To find the total work done on the block, use the work-energy theorem: . Hint 2. Find the change in kinetic energy What is the change in the kinetic energy of the block, from the moment it starts moving until it has been pulled a distance ? Remember that the block is pulled at constant speed. Hint 1. Consider kinetic energy If the block's speed does not change, its kinetic energy cannot change. ANSWER: ANSWER: L Wtot Wtot = Kf − Ki L Kf − Ki = 0 Wtot = 0 Correct Part B What is , the work done on the block by the force of gravity as the block moves a distance up the incline? Express the work done by gravity in terms of the weight and any other quantities given in the problem introduction. Hint 1. Force diagram Hint 2. Force of gravity component What is the component of the force of gravity in the direction of the block's displacement (along the inclined plane)? Express your answer in terms of and . Hint 1. Relative direction of the force and the motion Remember that the force of gravity acts down the plane, whereas the block's displacement is directed up the plane. ANSWER: Wg L w w  ANSWER: Correct Part C What is , the work done on the block by the applied force as the block moves a distance up the incline? Express your answer in terms of and other given quantities. Hint 1. How to find the work done by a constant force Remember that the work done on an object by a particular force is the integral of the dot product of the force and the instantaneous displacement of the object, over the path followed by the object. In this case, since the force is constant and the path is a straight segment of length up the inclined plane, the dot product becomes simple multiplication. ANSWER: Correct Part D What is , the work done on the block by the normal force as the block moves a distance up the inclined plane? Express your answer in terms of given quantities. Hint 1. First step in computing the work Fg|| = −wsin() Wg = −wLsin() WF F L F L WF = FL Wnormal L The work done by the normal force is equal to the dot product of the force vector and the block's displacement vector. The normal force and the block's displacement vector are perpendicular. Therefore, what is their dot product? ANSWER: ANSWER: Correct Problem 11.20 A particle moving along the -axis has the potential energy , where is in . Part A What is the -component of the force on the particle at ? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Part B What is the -component of the force on the particle at ? Express your answer to two significant figures and include the appropriate units. N  L = 0 Wnormal = 0 y U = 3.2y3 J y m y y = 0 m Fy = 0 N y y = 1 m ANSWER: Correct Part C What is the -component of the force on the particle at ? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.28 A cable with 25.0 of tension pulls straight up on a 1.08 block that is initially at rest. Part A What is the block's speed after being lifted 2.40 ? Solve this problem using work and energy. Express your answer with the appropriate units. ANSWER: Correct Fy = -9.6 N y y = 2 m Fy = -38 N N kg m vf = 8.00 ms Problem 11.29 Part A How much work does an elevator motor do to lift a 1500 elevator a height of 110 ? Express your answer with the appropriate units. ANSWER: Correct Part B How much power must the motor supply to do this in 50 at constant speed? Express your answer with the appropriate units. ANSWER: Correct Problem 11.32 How many energy is consumed by a 1.20 hair dryer used for 10.0 and a 11.0 night light left on for 16.0 ? Part A Hair dryer: Express your answer with the appropriate units. kg m Wext = 1.62×106 J s = 3.23×104 P W kW min W hr ANSWER: Correct Part B Night light: Express your answer with the appropriate units. ANSWER: Correct Problem 11.42 A 2500 elevator accelerates upward at 1.20 for 10.0 , starting from rest. Part A How much work does gravity do on the elevator? Express your answer with the appropriate units. ANSWER: Correct W = 7.20×105 J = 6.34×105 W J kg m/s2 m −2.45×105 J Part B How much work does the tension in the elevator cable do on the elevator? Express your answer with the appropriate units. ANSWER: Correct Part C Use the work-kinetic energy theorem to find the kinetic energy of the elevator as it reaches 10.0 . Express your answer with the appropriate units. ANSWER: Correct Part D What is the speed of the elevator as it reaches 10.0 ? Express your answer with the appropriate units. ANSWER: Correct 2.75×105 J m 3.00×104 J m 4.90 ms Problem 11.47 A horizontal spring with spring constant 130 is compressed 17 and used to launch a 2.4 box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on the surface is 0.15. Part A Use work and energy to find how far the box slides across the rough surface before stopping. Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Problem 11.49 Truck brakes can fail if they get too hot. In some mountainous areas, ramps of loose gravel are constructed to stop runaway trucks that have lost their brakes. The combination of a slight upward slope and a large coefficient of rolling friction as the truck tires sink into the gravel brings the truck safely to a halt. Suppose a gravel ramp slopes upward at 6.0 and the coefficient of rolling friction is 0.45. Part A Use work and energy to find the length of a ramp that will stop a 15,000 truck that enters the ramp at 30 . Express your answer to two significant figures and include the appropriate units. ANSWER: Correct N/m cm kg l = 53 cm kg m/s l = 83 m Problem 11.51 Use work and energy to find an expression for the speed of the block in the following figure just before it hits the floor. Part A Find an expression for the speed of the block if the coefficient of kinetic friction for the block on the table is . Express your answer in terms of the variables , , , , and free fall acceleration . ANSWER: Part B Find an expression for the speed of the block if the table is frictionless. Express your answer in terms of the variables , , , and free fall acceleration . ANSWER: μk M m h μk g v = M m h g Problem 11.57 The spring shown in the figure is compressed 60 and used to launch a 100 physics student. The track is frictionless until it starts up the incline. The student's coefficient of kinetic friction on the incline is 0.12 . Part A What is the student's speed just after losing contact with the spring? Express your answer to two significant figures and include the appropriate units. ANSWER: Correct Part B How far up the incline does the student go? Express your answer to two significant figures and include the appropriate units. ANSWER: v = cm kg 30 v = 17 ms Correct Score Summary: Your score on this assignment is 93.6%. You received 112.37 out of a possible total of 120 points. !s = 41 m

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art 1: Some of the more characteristic doctrines of the Enlightenment focused on the power and goodness of human rationality: 1) Reason is the most significant and positive capacity of the human; 2) reason enables one to break free from primitive, dogmatic, and superstitious beliefs holding one in the bonds of irrationality and ignorance; 3) in realizing the liberating potential of reason, one not only learns to think correctly, but to act correctly as well; 4) through philosophical and scientific progress, reason can lead humanity as a whole to a state of earthly perfection; 5) reason makes all humans equal and, therefore, deserving of equal liberty and treatment before the law; 6) beliefs of any sort should be accepted only on the basis of reason, and not on traditional or priestly authority; and 7) all human endeavors should seek to impart and develop knowledge, not feelings or character. (pbs.com) Benjamin Franklin, Thomas Paine, and Thomas Jefferson embodied the Age of Enlightenment. Use your choice of three of the seven doctrines to explain and prove these author’s philosophies. Make sure you draw on our readings to support your choices. Next, consider and discuss how these doctrines have been advanced, tested, and revised as the nation has grown and evolved. Part II: Briefly describe several, meaning more than two, of the conditions of the slave ship as experienced by Olaudah Equiano and related in his narrative. Compare his narrative to that of Phillis Wheatley’s experience. You must use selected quotes from each, but then interpret, in your own words, what the quotes mean and what their impact is on the reader.

art 1: Some of the more characteristic doctrines of the Enlightenment focused on the power and goodness of human rationality: 1) Reason is the most significant and positive capacity of the human; 2) reason enables one to break free from primitive, dogmatic, and superstitious beliefs holding one in the bonds of irrationality and ignorance; 3) in realizing the liberating potential of reason, one not only learns to think correctly, but to act correctly as well; 4) through philosophical and scientific progress, reason can lead humanity as a whole to a state of earthly perfection; 5) reason makes all humans equal and, therefore, deserving of equal liberty and treatment before the law; 6) beliefs of any sort should be accepted only on the basis of reason, and not on traditional or priestly authority; and 7) all human endeavors should seek to impart and develop knowledge, not feelings or character. (pbs.com) Benjamin Franklin, Thomas Paine, and Thomas Jefferson embodied the Age of Enlightenment. Use your choice of three of the seven doctrines to explain and prove these author’s philosophies. Make sure you draw on our readings to support your choices. Next, consider and discuss how these doctrines have been advanced, tested, and revised as the nation has grown and evolved. Part II: Briefly describe several, meaning more than two, of the conditions of the slave ship as experienced by Olaudah Equiano and related in his narrative. Compare his narrative to that of Phillis Wheatley’s experience. You must use selected quotes from each, but then interpret, in your own words, what the quotes mean and what their impact is on the reader.

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Sex, Gender, and Popular Culture Spring 2015 Look through popular magazines, and see if you can find advertisements that objectify women in order to sell a product. Alternately, you may use an advertisement on television (but make sure to provide a link to the ad so I can see it!). Study these images then write a paper about objectification that deals with all or some of the following: • What effect(s), if any, do you think the objectification of women’s bodies has on our culture? • Jean Kilbourne states “turning a human being into a thing is almost always the first step toward justifying violence against that person.” What do you think she means by this? Do you agree with her reasoning? Why or why not? • Some people would argue that depicting a woman’s body as an object is a form of art. What is your opinion of this point of view? Explain your reasoning. • Why do you think that women are objectified more often than men are? • How does sexualization and objectification play out differently across racial lines? • Kilbourne explains that the consequences of being objectified are different – and more serious – for women than for men. Do you agree? How is the world different for women than it is for men? How do objectified images of women interact with those in our culture differently from the way images of men do? Why is it important to look at images in the context of the culture? • What is the difference between sexual objectification and sexual subjectification? (Ros Gill ) • How do ads construct violent white masculinity and how does that vision of masculinity hurt both men and women? Throughout your written analysis, be sure to make clear and specific reference to the images you selected, and please submit these images with your paper. Make sure you engage with and reference to at least 4 of the following authors: Kilbourne, Bordo, Hunter & Soto, Rose, Durham, Gill, Katz, Schuchardt, Ono and Buescher. Guidelines:  Keep your content focused on structural, systemic, institutional factors rather than the individual: BE ANALYTICAL NOT ANECDOTAL.  Avoid using the first person or including personal stories/reactions. You must make sure to actively engage with your readings: these essays need to be informed and framed by the theoretical material you have been reading this semester.  Keep within the 4-6 page limit; use 12-point font, double spacing and 1-inch margins.  Use formal writing conventions (introduction/thesis statement, body, conclusion) and correct grammar. Resources may be cited within the text of your paper, i.e. (Walters, 2013).

Sex, Gender, and Popular Culture Spring 2015 Look through popular magazines, and see if you can find advertisements that objectify women in order to sell a product. Alternately, you may use an advertisement on television (but make sure to provide a link to the ad so I can see it!). Study these images then write a paper about objectification that deals with all or some of the following: • What effect(s), if any, do you think the objectification of women’s bodies has on our culture? • Jean Kilbourne states “turning a human being into a thing is almost always the first step toward justifying violence against that person.” What do you think she means by this? Do you agree with her reasoning? Why or why not? • Some people would argue that depicting a woman’s body as an object is a form of art. What is your opinion of this point of view? Explain your reasoning. • Why do you think that women are objectified more often than men are? • How does sexualization and objectification play out differently across racial lines? • Kilbourne explains that the consequences of being objectified are different – and more serious – for women than for men. Do you agree? How is the world different for women than it is for men? How do objectified images of women interact with those in our culture differently from the way images of men do? Why is it important to look at images in the context of the culture? • What is the difference between sexual objectification and sexual subjectification? (Ros Gill ) • How do ads construct violent white masculinity and how does that vision of masculinity hurt both men and women? Throughout your written analysis, be sure to make clear and specific reference to the images you selected, and please submit these images with your paper. Make sure you engage with and reference to at least 4 of the following authors: Kilbourne, Bordo, Hunter & Soto, Rose, Durham, Gill, Katz, Schuchardt, Ono and Buescher. Guidelines:  Keep your content focused on structural, systemic, institutional factors rather than the individual: BE ANALYTICAL NOT ANECDOTAL.  Avoid using the first person or including personal stories/reactions. You must make sure to actively engage with your readings: these essays need to be informed and framed by the theoretical material you have been reading this semester.  Keep within the 4-6 page limit; use 12-point font, double spacing and 1-inch margins.  Use formal writing conventions (introduction/thesis statement, body, conclusion) and correct grammar. Resources may be cited within the text of your paper, i.e. (Walters, 2013).

The objectification of women has been a very controversial topic … Read More...
. Imagine yourself teaching a carefully planned lesson. Do the activities you imagine doing with your students correlate to your own strengths? Why or why not?

. Imagine yourself teaching a carefully planned lesson. Do the activities you imagine doing with your students correlate to your own strengths? Why or why not?

In some instances the educator plans and teaches mini-lessons using … Read More...