A+30.0 nc charge is placed at the origin of an xy-coordinate system, and a −25.0 nc charge is placed at the point (3.000 m, −0.0450 m).
(a) determine the magnitude and the direction of the force that the positive charge exerts on the negative charge. use ijk notation for your result.
f =
(b) determine the magnitude and direction of the force of the negative charge on the positive charge.
f=