92 91 2. A charge of q = 7.00 C is at the origin of a cartesian coordinate system. A charge q = -7.00 C is then placed at 0.400 m on the positive y-axis. Last, a charge of 93 = -5.00 C is placed at point 0.300 m on the positive x-axis. What is the magnitude and direction of the electric force on q3? (See example 15.5 for a reference)