five ramps lead from the ground to the second floor of a workshop, as sketched below. all five ramps have the same height; ramps b, c, d and e have the same length; ramp a is longer than the other four. you need to push a heavy cart up to the second floor and you may choose any one of the five ramps.

answer; i believe the correct answer is (40,000 j) good luck

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.

a. carbon dioxide, i took the test and got it right.