A point charge of +Q is placed at the center of a square, and a
),cr)0e2taq a65z ntcb.gbf e second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts on the positive charge at the center. What is the magnitude of the force that acts on the cen
) b6e5rta zcf.2)a q,t n0gebcter charge if a third charge of -Q is placed at the lower-left corner?