An input force of 300 N is applied to a hydraulic jack piston that is 0.033m in diameter. If the piston that supports the load has a diameter of 0.25 m, what would be the approximate mass that can be lifted by the jack? Ignore any difference in height between the pistons.

A12-kg bag of groceries is tossed onto a table at 4.0 m/s and slides to a stop in 2.2 s . modify the equation fδt=δ (mv) to find the force of friction.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island