Students are using an air rocket to investigate the relationship between force and an object's motion. Students pump air into the rocket, then release the rocket, and the
compressed air pushes the rocket upward.
In order to vary the amount of force acting on the rocket, which of the following should
the students change in each trial?

d. learned preferences i believe is your answer

pe = weightxheight = 2000x1000=2,000,000joules

i think it's 35 meters

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.