HOW WILL SERVE 1. Forehand Server
1.
2.
3.
4.
5.
6.
7.
8.
2.Backhand/ Short serve:
1.
2.
3.
4.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

Where do magnetic lines of force enter earth?