1. The problem statement, all variables and given/known data I have 2 protons 1 femtometer away from each other, what is the repulsive force between them? q1 = 1.6x10-19C q2 = 1.6x10-19C r = 1x10-15m K = 9x109Nm2/C2 2. Relevant equations FE=Kqqqw/rw 3. The attempt at a solution My answer comes out to be -230.4N but I feel that that is wrong because this is approximately the distance that 2 protons are from each other in an atom and that would mean the strong force is acting on them wouldn't it? So wouldn't the repulsive force be very high? Or is the strong force just much more powerful than it needs to be?