1. The problem statement, all variables and given/known data The sum of two point charges is + 11μC. When they are 2.9 cm apart, each experiences a force of 194 N. Find the charges given that the force is: (a)Repulsive (b)Attractive (In micronewtons) 2. Relevant equations F = KqQ/r^2 q + Q = Net charge 3. The attempt at a solution I confirmed this with my friend and he got the same answer as me, so maybe we are both making the same mistake. q + Q = 11 => q = 11 - Q F = kq(11-Q)/r^2 => 194 = (9x10^9)(11-Q)Q/(0.029)^2 After solving and simplifying the quadratic I got Q = 11 and 1.6*10^-12 which is wrong.