Change in v = 9.8 m/s 2 x t. The diagram shows a ball falling toward Earth in a vacuum.
v= 0 m/s
Time (s) o
1
2
3
4.
What is the velocity of the ball at 3 seconds?
A. 9.8 m/s
B. 19.6 m/s
C. 39.2 m/s
D. 29.4 m/s

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

Work is reduced while time is decreased

1. electricity2. discharge: )