1. Two charges are placed on x-axis as follows: q1 = +10 C at +0.65 m, q2 = -5.6 C at -0.30 m. A third charge q is located at x = 0. The net electric force that acts on q has a magnitude of 6.0 x 10-4 N. Find the magnitude of q. 2.Point charges of 5 x10-9 C are situated at each of the three corners of a square whose side is 0.5 m. What would be the magnitude and direction of the resultant force on a point charge of -4 x 10-19 C if it was placed at the lower left corner of the square