The mass of the earth is 5.98 X 10^24 kg, the mass of the moon is 7.36 X 10 ^22 kg, and the distance between the centers of the earth and the moon is 3.82 X 10 ^8 m. How far is the center of mass of the earth-moon system from the center of the earth? is the earth-moon center of mass above or below the surface of the earth? by what distance?