A charge of 6.00 x 10-9C and a charge of -3.00 x 10-9C are seperated by a distance of 60.0 cm. Find the position at which a third charge, of 12.0 x 10-9C, can be placed so that the net electrostatic force on it is zero.
The Attempt at a Solution
I drew a diagram and I believe that the third charge should be place on the end next to the -3.00 x 10-9C charge. How do I solve for the distance/location of this charge?