An object slides down a rough inclined plane with some non-zero acceleration a1. (There is friction).The same mass is shoved up the same incline with a large, brief initial push. As the mass moves up the incline, its acceleration is a2. What can be said about the acceleration of the box?

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

Energy can be transformed from one form to another. the diagram shows one such process. which energy transformation is represented in the diagram? nuclear to thermal and radiant nuclear to electrical and chemical chemical to nuclear and radiant chemical to electrical and nuclear

During the past 150 years in the united states, how did energy consumption compare to population growth