Problem: Three point charges are arranged on a line. q3 = + 5.00 nC and is at the origin. Charge q2 = -3.00nC and is at x =4.00cm. Charge q1 is at x = 2.50 cm.
Part A: What is the sign and magnitude of q1 if the net force on q3 is zero?
Show all work, use additional paper if necessary for above problem.