this is my first time posting here in the forums right now im really stuck with this problem i already tried solving it on my own but i can't i will really apreciate any feedback or hint i could use to solve it U_U Estimating Charge Two hard rubber spheres of mass ~20 g are rubbed vigorously with fur on a dry day. They are then suspended from a rod with two insulating strings of length 10 cm. They are observed to hang at equilibrium, 19° from vertical, as shown in Fig. 22-41. Estimate the amount of charge that is found on each sphere 3. The attempt at a solution i saw a somewhat similar problem on my text and i tried ths equation x= (2*k*L*q^2 / mg )^1/3 where L is the length of the cord and x the separation of the balls and my final answer was wrong :S did i use the right equation :S???