Atennis ball is thrown straight up with an initial speed of 20.5 m/s. it is caught at the same distance about ground as it is thrown.

What is the mass of the same rock on the earth

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p