Consider three charges placed in a straight line, Charges qa and qb are separated by 2.00 meters. The magnitude of the charges A and B are, qa= 45.0 C; and qb= -5.00 C. The charge is qc has a small but unknown charge. Explain why to the right of the other two charges is the the only place qc will experience zero net force. Show that both magnitude and sign of qc do not affect this result. Then find the position at which qc must be placed to experience zero net force