An assistant for the football team carries a 30.0-kg cooler of water from the top row of the stadium, which is 20.0 m above the field level, down to the bench area on the field. (a) if the speed of the cooler is constant throughout the trip, calculate the work done by the assistant on the cooler of water. (b) how much work is done by the force of gravity on the cooler of water?

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

v 154.9= 0.9 length length s little over 154.9cm

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.