1. The problem statement, all variables and given/known data Two identical lead spheres are 14cm apart and attract each other with a force of 0.30(myu)N . What is their mass? 2. Relevant equations F = GMm/r^2 3. The attempt at a solution not sure but : let myu = u. .3uN = GMm/r^2 .3umg = GMm/r^2 u = 10/3 *GM/(r^2*g) not sure what to do next. Do I use the same equation for sphere 2, but solve for M and substitute?