Two identical small insulating balls are suspended by separate 0.25-m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.0×10–4 kg. Initially the balls are uncharged and hang straight down. They are then given identical positive charges and, as a result, spread apart with an angle of 36° between the threads. Determine (a) the charge on each ball and (b) the tension in the threads. Its been a long time since I have worked with tension.. and free body diagrams. Can someone please provide a kick for me in the right directoin? What would the diagram look like (free body/forces), and how would I go about solving this?