1. The problem statement, all variables and given/known data Three identical small Styrofoam balls (m = 1.84 g) are suspended from a fixed point by three nonconducting threads, each with a length of 46.5 cm and with negligible mass. At equilibrium the three balls form an equilateral triangle with sides of 30.0 cm. What is the common charge q carried by each ball? 2. Relevant equations Coloumb's law 3. The attempt at a solution I've figured out that the repulsive electric force acting on one ball is 6.138e-3 N. This was done by figuring out the x-component of tension by using the weight. After that, using coloumb's law, i got that F = (9.99e10)(q2) i then figured that the net force would equal F + F. I added the two force vectors using the cosine law and splitting it into components and i arrive at q = 1.88e-7 C however, this seems to be wrong. Can anyone help please?