While working on some home repairs with his uncle, a student helps cut the wood. After the cut is made, she blows off the dust and feels the heat coming up from the wood onto her face. She also smells a slight burning smell. The student asks her uncle, "why did it get so hot?" and her uncle responds with one word: friction. Explain why the blade and wood became so hot while cutting. In your response, be sure to include:

1. A definition of friction.

2. How friction changes the temperature of substances.

3. How the width of the blade and depth of the cut would affect the amount of heat produced and why.

Be sure to consider the completeness of your response, supporting details, and accurate use of terms.

5submission this assignment is worth 20 points total. you are required to submit the following by next lab: 1. (3 points) determine the equation for the output angular velocity ω2 = θ˙ 2 as a function of θ1, ω1 = θ˙ 1 and α. you must show all your work to receive credit. 2. (2 points) use the result of problem#1 to plot ω2 over 0 ≤ θ1 ≤ 360deg with ω1 = 360deg/sec. do this for α = {10,30}deg. show the results on the same plot and properly label the axes, title, legend. for this you can use matlab or ms excel. 3. (3 points) determine the equation for the output angular acceleration ω˙ 2 and create a plot similar to the one in problem#2. 4. (10 points) submit plots of the results (ω2 and ω˙ 2) obtained from creo/mechanism and compare them to results of problem#2 and problem#3. note that you should do these comparisons for the two cases with α = {10,30}deg. 5. (2 points) provide a brief explanation of the results. did they match? what are the implications as misalignment angle increases?

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