Two small beads having positive charges q = 229 and 92 = q are fixed at the opposite ends of a horizontal insulating rod of length d = 1.50 m. The bead with charge q is at the origin. As shown in the figure below, a third small, charged bead is free to slide on the rod. 9 d 92 + x 0 (a) At what position x is the third bead in equilibrium? x = m (b) Can the equilibrium be stable? Yes, if the third bead has a positive charge. Yes, if the third bead has a negative charge.