A metal sphere with a negative charge of 3.00x10^-6C is placed 12.0 cm from another similar metal sphere with a positive charge of 2.00x10^-6C. The two spheres momentarily touch, then return to their original positions. Calculate the electrostatic force acting on the two metal spheres.
The Attempt at a Solution
Fe=3.75 N [Repulsive]
For some reason the above formula wont work to get the answer that it says, am I doing something wrong?
Answer should be 1.56x10^-1 N [Repulsive]