1/4 the distance? must be 16 times as great.
4 times as far? must be 1/16 as much
F=kQq/distance^2
Two identical charges repel each other with a force of 10-5 N when they are 20 cm apart.
a.) What is the force on each when they are 5 cm apart?
b.) When they are 100 cm apart?
3 answers
25
300
300
Assessment
1 answer