A 0.2 kg tennis ball starts at rest and then a racket applies a force of 2400 N for 0.3
seconds. Find the momentum of the ball,

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

The solid that is formed and usually sinks to the bottom of a solution is the

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory