The electric P.E of an electron in an orbit at a distance rn from the positive chargePhysics A. Ke2/rn B. Ke2/rn2 C. ÀKe2/rn D. ÀKe2/rn2
Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is
