A +2.00 nC point charge is at the origin, and a second -5.00 nC point charge is axis atx = 0.800 m. a) Find the electric field (magnitude and direction) at each of the following points axis: i) x = 0.200 m; ii) x = 1 20 m; iii) x = -0.200 m. b) Find the net electric force that the two charges would exert on the electron ple