1. The problem statement, all variables and given/known data How much work is required to assemble eight identical charged particles, each of magnitude q, at the corners of a cube of side s? 2. Relevant equations W=deltaU delta U = kQq/r 3. The attempt at a solution I've come up with those equations, and was trying to plug the information into delta U. However, all the charges are identical, so there are not two different values for q. But would it be delta U = kq^2/s ??