A +3.4 micro-coulomb charge is placed at the origin and another negative unknown charge is placed some distance, d, around the +3.4 micro-coulomb charge at the origin. The magnitude of the electric force among these two charges is 3.3 Newton’s. The unknown charge is removed while the charge at the origin remains. Then, the unknown charge is replaced by a positive charge for which the magnitude of the charge is 6 times smaller and is placed a factor of three times further from the charge at the origin on the positive x axis. A third charge of -8.5 micro-coulombs is placed at x = -0.23 m, y = -0.86 m. Gauged counter-clockwise from the positive x axis, what is the angle for the total electric force on the charge at the origin due to the other two charges?