Given the above charge distribution, determine the net force (magnitude and direction) on q1. All charges have a magnitude e = 1.602 x 10-19 C but q1, q2, and q4 are positive charges whereas q3 is a negative charge. Pick values for a, b, c, and d (in cm). Your solution must include a diagram showing the forces acting on q1. You may choose to use unit vector notation - up to you! C - - 31 I X - - a b