2 tiny conducting balls of identical mass (m), and identical charge (q), hang from separate nonconducting threads of length, L. the threads are hanging from the same point such that a triangle is formed. The distance separating the 2 charges is x. and the angle formed at the apex is 2*theta. Assume that theta is so small that tan(theta) can be replaced by its approximate equal, sin(theta).
Show that x = [(q^2*L)/(2*Pi*m*g*8.99*10^9)]^(1/3)