Gravity can be described as an magnetic force found in nature. the force that moves electrical charges. the force that repels object with like charges. the force of attraction between two objects.

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?

Avoltaic cell converts chemical energy to