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1. An electron and a proton have charges of an equal magnitude but opposite sign of 1.60 10-19 C. If the electron and proton in a hydrogen atom are separated by a distance of 3.80 10-11 m, what are the magnitude and direction of the electrostatic force exerted on the electron by the proton?
magnitude ________ N?
direction-- attractive/repulsive?
2. A charge of +1.00 10-6 C is located 29 cm from a charge of -4.00 10-6 C.
(a) What is the magnitude of the force exerted on each charge?
N
(b) On a drawing, indicate the directions of the forces acting on each charge.
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