Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC charge?
Two point charges, separated by 1.5 cm, have charge values of 2.0 and -4.0 µC, respectively. What is the magnitude of the electric force between them?