Q. A 5.00 m diameter garden pond is 0.200 deep. Solar energy is incident on the pond at an average rate of 400 If the water absorbs all the solar energy and does not exchange energy with its surroundings, how various hours will it take to warm from 13.00 to 18.00?
Q. Suppose a 63.00 kg boy and a 50.00 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.00 m/s2, find out the magnitude of the acceleration of the boy toward girl.