You and a friend are jumping on a trampoline. why does earth, which is rapidly orbiting around the sun, not move under your feet when you jump? a. newton's third law holds that there is an equal and opposite force exerted by the trampoline on your feet, which allows you to move with earth through space. b. newton's first law holds that your body moves along with earth because it is not compelled to change its motion by an unbalanced force. c. newton's second law holds that the acceleration produced by the force of gravity is offset by the force of friction on your feet. d. there are different rules in space and on the surface of the earth

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?

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a. thermal conductor b. thermal insulator c. endothermic d. exothermic