Evaluate the following statement (T/F/N), explain:

If you reduce by half the distance between two point charges, you double the magnitude of electrical force that each exerts on the other.

3 answers

a ball of mass 0.220-kg that is moving with a speed of 5.5
true. force=a/distance^2
reduce distance by half, multiply the force by 2^2 = 4
k Q1 Q2 / d^2