b 91 92 >X a Charge q1 = 4.05 . 10 C is placed at the origin. Charges q2 = - 1.05 . 10 8 C and q3 = 1.83 . 10 8 Care placed at points (0.147 m, 0 m) and (0 m, 0.319 m), respectively, as shown in the figure. a) Determine the magnitude of the net electrostatic force on charge q3 . (You may enter your calculation using scientific notation.) IN b) Determine the direction of the net electrostatic force on charge q3 . (Enter the angle with respect to the positive x-axis). deg