In the figure particle 1 of charge q1=1.09C and particle 2 of charge q2=2.91C, are held at separation L=10.8cm on an axis. If particle 3 of unknown charge q3 is to be located such that the net electrostatic force on it from particles 1 and 2 is zero, what must be the (a) x and (b) y coordinates of particle 3 ? (a) Number Units (b) Number Units