1. The problem statement, all variables and given/known data The mass of the moon is 7.35 x 10^22 kg and its distance from the earth is 3.84 x 10^5 km. Taking earths mass to be 5.98 x 10^24, calculate what newton called "the force resquisite to keep the moon in her orb." mass of moon = 7.35 x 10^22 kg distance from earth= 3.84 x 10^5 km earths mass = 5.98 x 10^24 3. The attempt at a solution First of all, i would like to know what Newton called "the force resquisite to keep the moon in her orb." means. Then maybe i will be able to figure out what the question is asking.