Aworker pushes a box with a horizontal force of 40.0 n over a level distance of 4.0 m. if a frictional force of 27 n acts on the box in a direction opposite to that of the worker, what net work is done on the box

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

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.