During a solar eclipse, the sun, earth, and moon align, with the moon in the middle. Determine the magnitude of the net gravitational force on the moon from the earth and sun during a solar eclipse. m E is the mass of the earth, m S is the mass of the sun, m M is the mass of the moon, and the distances are defined as follows: R E M = distance from earth to moon (measured center of mass to center of mass) R E S = distance from earth to sun (measured center of mass to center of mass)