Three charges are arranged as shown in the diagram.
-8 C
The magnitude of the net electrical force acting on the +6
UC charge, rounded to the tenths place, is
0.3 m
10.2m i
"
0.2 m
+6 uc
0.2 m
0.3m

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic