Each of two small spheres is charged positively, the combined charge being 5 x 10^-5 C. If each sphere is repelled from the other by a force of one newton, when the spheres are two meters apart, how is the total charge distributed between the two spheres ?
Let q1 and q2 be the charge on the two spheres.
q1 + q2 = 5 x 10^-5 C .........(1)
we have , F = K (q1 q2/R^2)
where K = ...
Very detail answer with easy to understand steps. It will enable you to do similar problems yourself.