The charges and coordinates of two charged particles held fixed in an xy plane are q1 = 2.97 JC, x1 = 4.36 cm, y1 = 0.849 cm and q2 - -4.01 JC, x2 =-2.53 cm, y2 = 2.30 cm. Find the (a) magnitude and (b) direction (with respect to +x-axis in the range (-180;180.]) of the electrostatic force on particle 2 due to particle 1. At what (c) x and (d) y coordinates should a third particle of charge q3 = 6.67 HC be placed such that the net electrostatic force on particle 2 due to particles 1 and 3 is zero? (a) Number i Units (b) Number i Units (c) Number i Units (d) Number Units