Given Charge 1 is 400 uC and is at the origin (0 m, 0 m) Charge 2 is 500 uC and is at point (0 m, 5 m) Charge 3 is 150 uC and is at point (-5 m 4 m) What is the force on Charge 3 in terms of its magnitude (r) and direction (O)?