What is the net electric potential at point P produced by the following charges? q1 = -16. 8 µC located at x1 = 4. 7 cm, y1 = 1. 1 cm. q2 = 16. 8 µC located at x2 = -3. 5 cm, y2 = 4. 4 cm. Point P is located at __________?