Q. Two identical positive charges exert a repulsive force of 7.4 10-9 N when separated by a distance of 4.8 10-10 m. Calculate the charge of each.
Q. A proud deep-sea fisherman hangs a 65.0 fish from an ideal spring having negligible mass. The fish stretches the spring 0.127 .
What is the period of oscillation of the fish if it is pulled down 3.60 and released?