15x 9.8 x .3 = 44.1
15 x 9.8 x 1 = 147
147 - 44.1 = 102.9J
102.9 J
A ball hit by a man is stronger than a ball hit by a man because the man uses more force when hitting the ball than the boy does.
Answer:
Electromagnetic waves
Electromagnetic waves bring energy into a system by virtue of their electric and magnetic fields. These fields can exert forces and move charges in the system and, thus, do work on them. However, there is energy in an electromagnetic wave itself, whether it is absorbed or not.
So the answer is B electrical energy
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Answer:
Explanation:
Let the electric field strength is E and the charge is q. The force experienced by the charge due to the presence of electric field is
F = q x E
The direction of force is same as that of the electric field strength if the charge is positive in nature and if the charge is negative in nature the direction of force is opposite to the direction of electric field.
