Q1. On Tuesday Sasha writes back saying “Here is my cheque for £4,500” She puts it in the post that night. On Friday morning, Sasha’s letter has still not arrived. Later that day Arthur receives a text message from Simon, which reads, “I’ll give you £5000 for the car. I’ll pick it up tomorrow”. Arthur replied “OK”. Explain to Arthur with which party he will have a valid contract. Give full reasons with case law illustrations. (25 marks) 2. Explain with examples why goods should be of satisfactory quality and fit for purpose. (25 marks) 3. Explain with examples how terms are incorporated into a contract. (25 marks) 4. Explain with examples contractual remedies. (25 marks)
EME 4003 Projects (15% of the Final Grade) There are two design projects in this class which are presented as Projects 1 & 2 below. Grades for the projects will be assigned on a group basis. Peer evaluations of each project will be required. These peer evaluations in addition to evaluation by the instructor are used to evaluate the individual participation on the group projects and will affect each individual’s grade. No late projects will be accepted. A quality design project could earn up to 5 extra points to the final grade for all the group members. The design projects should be geared towards real-world machine element design. Attention should be given to functional analysis, materials selection, critical point analysis, failure mode analysis, and application of knowledge gained during your mechanical engineering courses. Each group should consist of 4 students. Please talk to your classmates and form your group by Thursday, September 10. I will form and assign the teammates for the students with no group. Project 1 (3%): Due October 15 Each member of the group should report on one of his/her favorite machines or mechanisms and provide a one-page description (approximately 500 words) along with a picture of the machine/mechanism(it is helpful if each group member brings the actual component to the group meeting). The paper should include the innovative part of the mechanisms, explain the forces acting on one or more of the components and the maximum stress locations. Each group should review the reports submitted by its members and provide feedback. The final reports with the comments from each teammate should be submitted to the instructor by October 15.. Project 2(12%): Due December 10 In this project, your group will be responsible for analyzing an existing engineering product (a piece of equipment with multiple mechanical components at work). Your group is responsible to evaluate the product and determine the safety factors in the design (if any) and suggest the minimum values for the design parameters (geometry, dimension, material, etc.) to reduce the cost. Project Guideline Step 1: Select an engineering product (consumer product or fixture) that is subjected to constant and variable (fatigue) loads. For examples: tools in the garage, the pedal crank on your bike, automotive components (i.e. shock tower on your vehicle), circular saw, etc. Brainstorm ideas with your teammates and select the product. Step 2: Here are the tasks a) Analyze it completely for failure modes b) Investigate the loads acting on the components, their variations, and the location of the maximum stresses (several locations) c) Estimate the stresses at these locations and draw Mohr’s Circle for these locations. You may need to create a spreadsheet in Excel/MATLAB to preform your calculations. All values in the spreadsheet or program must be clearly labeled. Show all intermediate steps, results, as well as the final output. d) Are there any Safety Factors required at these locations? e) If a Safety Factor of 1 was used, estimate the new geometry, dimensions, etc. Step 3: Develop conclusions and recommendations about the product (discuss and comments about the design, can it be improved?) State all assumptions you made in your analysis that might have accounted for possible inaccurate answers. The final report should be at least 1500 words including introduction, discussion, and conclusion with any pictures, figures, equations, tables, and spreadsheets. Reference: INCORPORATING OPEN-ENDED PROJECTS INTO A MACHINE ELEMENTS COURSE, Kathy Schmidt, the University of Texas at Austin, Matthew Campbell, University of Texas at Austin, Proceedings of the 2005 American Society for Engineering Education Annual Conference & Exposition
Questions from Ishmael, Part 1 Type your answers to the following questions: 1. How do animals typically react to life in a zoo, according to Ishmael? And how, as a young gorilla, did zoo life affect him personally? 2. What does Ishmael mean by “Takers” and “Leavers?” Do these terms have any connotations to you (and if so, describe them), or do you see them as neutral? 3. Describe our culture’s origin myth, according to Ishmael. 4. After the events described in our culture’s origin myth, what was the next major event in human history that is essential in describing “how things came to be this way.” In the book it’s called “the middle of the story.” Describe this event, detailing what it meant for humankind. 5. According to Ishmael, how do Takers envision the role of humans “in the divine scheme?” What is humankind’s purpose? How has this perspective affected human/nature relationships? 6. According to Ishmael, how do most Takers envision the future of humanity? As part of your answer, describe how most Takers say we should deal with problems such as energy shortages and pollution. 7. What is Daniel Quinn trying to get you to perceive about the state of our culture’s relationship with nature? How does his story-telling approach affect your perception about environmental issues? To what extent is his approach successful, and why?
MCE 260 Fall 2015 Homework 4, due September 22, 2015. PRESENT CLEARLY HOW YOU DEVELOPED THE SOLUTION TO THE PROBLEMS Each problem is worth up to 5 points. Points are given as follows: 5 points: Work was complete and presented clearly, the answer is correct 4 points: Work was complete, but not clearly presented or some errors in calculation 3 points: Some errors or omissions in methods or presentation 2 points: Major errors or omissions in methods or presentation 1 point: Problem was understood but incorrect approach was used DO SOMETHING WITH LINKAGES 1. (5 points) Fig 4-16b shows a Stephenson 6-bar linkage. Assume that the linkage is driven by a constant speed motor on the fixed pivot of link 7. Draw this linkage schematically (dimensions are not important). The link numbering and vector loops are already defined in Fig 4-16b. Add symbols for the angles θ2… θ8 and the lengths L2… L8 to the Figure. 2. (5 points) There are two vector loops (1-2-3-4, and 4-5-6-7-8). Write the vector loop equations as separate X and Y equations for each loop. 3. (5 points) Identify the unknowns that must be solved for doing position analysis. Make sure that the number of unknowns is the same as the number of equations. Hint: “links” 3 and 5 are both on the (rigid) coupler, so there is a simple relationship between the two angles. 4. (5 points) Write the vector loop equations for the inverted crank-slider (Fig. 4-13). Identify the two unknowns that must be solved when it is driven by the slider joint, which means that length b is a known input (as in the hydraulic excavator). Write expressions for the elements of the 2×2 Jacobian matrix. 5. (5 points) Modify the Matlab code fbpos1vec.m to solve the position analysis problem for this system. You may choose the dimensions and the input (probably best to make this similar to Fig 4-13). Show the lines of Matlab code that you changed (and no other lines) and show the values for the two unknowns that you solved. Page 1 of 1
Determine the direction of the Poynting vec-tor ~S at Pz. 1. bSP is in the +x direction 2. bSP is in the −y direction 3. bSP is in the +y direction 4. bSP is in the −x direction 5. bSP is in the +z direction correct 6. bSP is in the −z direction
Explanation: The traveling field pattern is moving away from the … Read More...
Chapter 07 Homework Due: 11:59pm on Friday, May 23, 2014 You will receive no credit for items you complete after the assignment is due. Grading Policy BioFlix Quiz: The Carbon Cycle Watch the animation at left before answering the questions below. Part A An organism gets carbon by using carbon dioxide in the atmosphere to make sugar molecules. This organism is a Hint 1. Review the animation or your Study Sheet for The Carbon Cycle. ANSWER: Correct During photosynthesis, producers use carbon dioxide to make sugar molecules. Part B Which organisms play a role in returning carbon to the atmosphere? Hint 1. Review the animation or your Study Sheet for The Carbon Cycle. ANSWER: higher-level consumer. producer. primary consumer. decomposer. None of the above Consumers and decomposers, but not producers. Producers only. Decomposers only. Consumers only. Producers, consumers, and decomposers. Chapter 07 Homework http://session.masteringenvironmentalscience.com/myct/assignmentPrintV… 1 of 7 5/21/2014 8:02 PM Correct Producers, consumers, and decomposers all return carbon dioxide to the atmosphere during cellular respiration. Part C Every carbon atom in the organic molecules that make up your body MUST recently have been part of Hint 1. Review the animation or your Study Sheet for The Carbon Cycle. ANSWER: Correct You are a consumer, and all your carbon comes ultimately from plants and other producers. Part D Imagine following a single carbon atom through the carbon cycle. Which of the following is a possible path for the carbon atom to take? Hint 1. Review the animation or your Study Sheet for The Carbon Cycle. ANSWER: Correct Carbon moves from the atmosphere into a producer (such as a plant), up the food chain, and then back to the atmosphere during cellular respiration. Part E Which process or processes return carbon to the atmosphere? Hint 1. Review the animation. ANSWER: Correct Cellular respiration results in the release of carbon dioxide to the atmosphere. a higher-level consumer. a primary consumer. a decomposer. a producer. a sugar molecule made in one of your chloroplasts. The atmosphere; a plant; a higher-level consumer; then back to the atmosphere. The atmosphere; a plant; an herbivore; another plant; then back to the atmosphere. The atmosphere, a plant, a herbivore, a decomposer, then back to the atmosphere The atmosphere; a decomposer; a higher-level consumer; then back to the atmosphere. The atmosphere; a decomposer; then back to the atmosphere. Cellular respiration only Photosynthesis only Cellular respiration and photosynthesis Breakdown of large organic molecules into smaller organic molecules Cellular respiration and the breakdown of large organic molecules into smaller organic molecules Chapter 07 Homework http://session.masteringenvironmentalscience.com/myct/assignmentPrintV… 2 of 7 5/21/2014 8:02 PM Activity: The Nitrogen Cycle Click here to complete this activity. Then answer the questions. Part A Nitrifying bacteria convert _____ to _____. ANSWER: Correct Nitrifying bacteria convert ammonium to nitrites. Part B _____ removes nitrogen from the atmosphere. ANSWER: Correct Nitrogen fixation is the conversion of nitrogen gas to a form that can be used by plants (and other organisms). Part C Assimilation is indicated by the letter(s) _____. nitrogen gas … ammonium nitrogen gas … nitrates ammonium … nitrites nitrates … nitrogen gas ammonium … nitrogen gas Denitrification Nitrification Mineralization Nitrogen fixation Assimilation Chapter 07 Homework http://session.masteringenvironmentalscience.com/myct/assignmentPrintV… 3 of 7 5/21/2014 8:02 PM ANSWER: Correct Assimilation is the uptake of nutrients into an organism. Part D Nitrogen-fixing bacteria is(are) indicated by the letter(s) _____. ANSWER: Correct Both of these pointers are indicating nitrogen-fixing bacteria. Nitrogen fixation is the conversion of nitrogen to a form that plants can use. Part E Nitrification is indicated by the letter(s) _____. ANSWER: C B A D and E C and D B and C A and B D and E C and D A Chapter 07 Homework http://session.masteringenvironmentalscience.com/myct/assignmentPrintV… 4 of 7 5/21/2014 8:02 PM Correct Nitrification is the conversion of organic nitrogen-containing compounds to nitrites and nitrates. Part F Denitrifying bacteria convert _____ to _____. ANSWER: Correct Denitrifying bacteria convert nitrates to nitrogen gas. Part G Which one of these is a nitrate? ANSWER: Correct NO3 – is a nitrate. Part H Which one of these is a nitrite? ANSWER: Correct This is a nitrite. GeoScience: Earth’s Water and the Hydrologic Cycle A B B and C D and E B and E nitrogen gas … nitrites nitrogen gas … ammonium nitrates … nitrogen gas ammonium … nitrogen gas nitrogen gas … nitrates NO2 – NH4 – NH2 SH NO3 – PO4 – NH2 NH4 – NO2 – NO3 – Chapter 07 Homework http://session.masteringenvironmentalscience.com/myct/assignmentPrintV… 5 of 7 5/21/2014 8:02 PM When you have finished, answer the questions. Part A The largest percentage of fresh water today is located in: ANSWER: Correct Ice sheets and glaciers are the greatest single repository of fresh water: they contain 77.3% of all Earth’s fresh water and 99.357% of all Earth’s surface fresh water. Part B Earth’s oceans hold: ANSWER: Correct The oceans contain 97.22% of all water, comprising about 1.321 billion cubic kilometers of salt water. This leaves only 2.78% of all of Earth’s water as fresh water (non-oceanic). Part C Which of the following is true of the hydrologic cycle? ANSWER: Correct About 20% of the moisture evaporated from the ocean combines with 2% of land-derived moisture to produce 22% of all precipitation that falls over land. Clearly, the bulk of continental precipitation comes from the oceanic portion of the cycle. Concept Review: Eutrophication Can you sequence the steps in the eutrophication process that occurs in a body of water? Part A Drag each statement to the appropriate location in the flowchart of the eutrophication process. ANSWER: soil. ice sheets and glaciers. the rivers and lakes of the world. groundwater resources. about the same amount of water as all groundwater sources combined. most of the fresh water on Earth. the bulk of all of the water found on Earth. about the same amount of water as all Earth’s rivers and lakes combined. Atmospheric water and surface water do not mix. Most evaporation on Earth occurs over the continents. The bulk of the precipitation occurs over land. Most of the water that falls on the continents is derived from the oceans. Chapter 07 Homework http://session.masteringenvironmentalscience.com/myct/assignmentPrintV… 6 of 7 5/21/2014 8:02 PM Concept Review: Biogeochemical Cycles Can you sort the items by which biogeochemical cycle they apply to? Part A Drag each description to the appropriate bin. ANSWER: Score Summary: Your score on this assignment is 62.3%. You received 12.45 out of a possible total of 20 points. Chapter 07 Homework http://session.masteringenvironmentalscience.com/myct/assignmentPrintV… 7 of 7 5/21/2014 8:02 PM
Race and Ethnic Relations in the United States Sociology 215, Section 003 Assignment 4 (Points: 25) 1. How the people of mixed race or multiracial descends were historically defined in America? Please describe the four different types of identities that presently characterize the biracial Americans with examples. (Use specific references from the textbook chapter 5 to answer this question) (6 points) 2. “Whereas African Americans had been exploited for their labor, Native Americans were exploited for their land.” Explain this statement with at least 3 specific reference to the legislative policies and how did those impact Native Americans. (Use specific references from the textbook Chapter 6 to answer this question)? (6 points) 3. Discuss the evolution of federal policies on immigration from Mexico over the course of the twentieth century. What were the major policies? When and why did they change? (Use specific references from the textbook Chapter 7 to answer this question) (6 points) 4. How accurate do you think is the portrait of “model minority” for the Asian American groups in the US? Please describe the contact situations with the Chinese and Japanese Americans in the US. How did it affect the development of their relations with the larger society? (Use specific references from the textbook Chapter 8 to answer this question) (7 points)