Question

Two identical 7.10-g metal spheres (small enough to be treated as particles) are hung from separate 600-mm strings attached to the same nail in a ceiling. Surplus electrons are added to each sphere, and then the spheres are brought in contact with each other and released. Their equilibrium position is such that each string makes a 11.0 degree angle with the vertical.

Part A: How many surplus electrons are on each sphere?

Answer 1