19 SSM www In Fig. 21-26, particle 1 of charge +q and parti- cle 2 of charge +4.00q are held at separation L = 9.00 cm on an x axis. If particle 3 of charge q3 is to be located such that the three particles remain in place when released, what must be the (a) x and (b) y coordinates of particle 3, and (c) the ratio 93/