1) what is responsible for the fact that the terrestrial planets have similar internal structure? a) gravity b) pressure c) temperature d) friction 2) unlike the terrestrial planets, the jovian planets are characterized by a made up of small solid rock particles a) gaseous atmosphere b) planetary ring system c) network of moons d) large revolving weather mass 3) star formation is triggered when a molecular cloud of is squeezed by an external event a) gas b) dust c) cloud cover d) heat 4) orbit stars other than the sun a) extrasolar planets b) dwarf planets c) jovian planets d) nebular planets 5) whereas asteroids are comprised primarily of comets are comprised primarily of a) rocky material; icy material b) permafrost; molten rock c) icy material; rocky material d) dark cloud; planetary fragments

You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j

Aregular polygon has angkes of size 150° each.how many side has the polygon

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?