4. In the rectangle in the drawing, a charge Q is to be placed at the empty corner to make the net force on charge A point in the horizontal direction. Find the following if q1 = 1.5 AC, 92 = 3.0 /LC, and 93 = -2.00 /C. (a) The force diagram of the charge at A (b) The algebraic sign of the missing charge, Q (c) The magnitude of the missing charge, Q (d) Find the magnitude of the force on the charge at A (e) Find the direction of the force on the charge at A 5d 84 V ( 2 2 ) 2 + ( 5 2)2 = 62 5: 385 d 2d 42 2 + 252 2 V 29 07 93 sing = ad 7 F13 5. 3852 Sing = 3.7139