1. The problem statement, all variables and given/known data At what distance from the Earth will a spacecraft traveling directly from the Earth to the Moon experience zero net force because the Earth and Moon pull with equal and opposite forces? 2. Relevant equations GM(earth)/(R-d)^2=GM(moon)/d^2 3. The attempt at a solution Me/Mm=81.3 root 81.3=(R-d)/d I have no idea how to figure out the rest of the question. Please help.