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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

## 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

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DISC and Jung Typology Reflection Paper DISC and Jung Typology Reflection Paper You will complete the DISC assessment and Jung Typology Assessment (Free Assessments – Links Provided on Blackboard) and then write a 2 Page Double Spaced reflection paper discussing the following: How the Results of the DISC compare to the Jung Typology Results Are they consistent? How do they differ? Are they accurate for you? How Could You Use This Information to Improve Your Personal Life and/or Career?

## DISC and Jung Typology Reflection Paper DISC and Jung Typology Reflection Paper You will complete the DISC assessment and Jung Typology Assessment (Free Assessments – Links Provided on Blackboard) and then write a 2 Page Double Spaced reflection paper discussing the following: How the Results of the DISC compare to the Jung Typology Results Are they consistent? How do they differ? Are they accurate for you? How Could You Use This Information to Improve Your Personal Life and/or Career?

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Relection I Question: How does the short movie “The Necktie” typify Marx’s theory of alienation found in Rinehart? Can you relate the situation in the Necktie to the behaviour experiments found the Dan Ariely presentation? Use the text and films to put forth an idea. Your piece should be approximately two pages long. You should use APA for your answer and it should be in essay format. I have posted a short APA guide as well. Links to short films: ! http://www.ted.com/talks/dan_ariely_what_makes_us_feel_good_about_our_ work?language=en#t-­‐167402 ! https://www.nfb.ca/film/necktie/

## Relection I Question: How does the short movie “The Necktie” typify Marx’s theory of alienation found in Rinehart? Can you relate the situation in the Necktie to the behaviour experiments found the Dan Ariely presentation? Use the text and films to put forth an idea. Your piece should be approximately two pages long. You should use APA for your answer and it should be in essay format. I have posted a short APA guide as well. Links to short films: ! http://www.ted.com/talks/dan_ariely_what_makes_us_feel_good_about_our_ work?language=en#t-­‐167402 ! https://www.nfb.ca/film/necktie/

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Which of the following occurs during DNA replication? DNA polymerase replicates the molecule 3′ to 5′ using the original strand as a template to form the new daughter molecule. DNA polymerase elongates the daughter strand, adding new nucleotides to the 3′ end of the molecule. The molecule grows 5′ to 3′ but is therefore read 3′ to 5′. DNA polymerase forms daughter molecules. Ligase then links these molecules together at their 5′ ends, forming the new daughter strand. DNA ligase replicates the new strand. DNA polymerase then proofreads the strand and makes any necessary corrections.

## Which of the following occurs during DNA replication? DNA polymerase replicates the molecule 3′ to 5′ using the original strand as a template to form the new daughter molecule. DNA polymerase elongates the daughter strand, adding new nucleotides to the 3′ end of the molecule. The molecule grows 5′ to 3′ but is therefore read 3′ to 5′. DNA polymerase forms daughter molecules. Ligase then links these molecules together at their 5′ ends, forming the new daughter strand. DNA ligase replicates the new strand. DNA polymerase then proofreads the strand and makes any necessary corrections.

DNA polymerase elongates the daughter strand, adding new nucleotides to … Read More...