(Score for Question 4: Click or tap here to enter text of 4 points) 4. In Part 2 of the lab, did the drop time of the ball depend on the horizontal velocity? Explain your answer with
data from the experiment. If you had variations in drop times, what could account for those? What
generalization can you make about horizontally moving projectiles?

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.