1. The problem statement, all variables and given/known data In Figure 21.12, two point charges q1=3uC and q2=-3uC interact with a third point charge Q=7uC. Find the magnitude and direction of the total (net) force on Q. 2. Relevant equations Edipole= kqs/r^3 3. The attempt at a solution I solved for the electric field with the above equation. I then multiplies that by the charge of Q to get the net force but it won't work! Help!