Calculate the ratio of the gravitational acceleration of the Earth due to the Sum with that of the Earth due to the Moon. (Given, M_{e} = 6 x 10^{24} kg, M_{s} = 2 x 10^{30} kg, M_{m} = 7.35 x 10^{22} kg, r_{es} = 1.5 x 10^{11} m and r_{em} = 3.84 x 10^{8} m)

Let the gravitational acceleration of the Earth due to the Sun is g_{es}, we have

Let the gravitational acceleration of the Earth due to Moon is g*, we have
*