If the large piston of a hydraulic press has an area of 500 cm2 (0.05 m2) what will be the total force upon it if a pressure of 100,000 Pa is produced by the small piston?

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

The discovery of the electron as a subatomic particle was a result of