The sun is more massive than the moon, but the sun is farther from the earth. Which one exerts a greater gravitational force on a person standing on the earth? Give your answer by determining the ratio F_sun/F_moon of the magnitudes of the gravitational forces. Use the data on the inside of the front cover.

Earth Mass 5.98 x 1024 kg Radius (equatorial) 6.38 x 10 m Mean distance from sun 1.50 x 10 m Moon Mass 7.35 x 1022 kg Radius (mean) 1.74 x 10 m Mean distance from earth 3.85 x 108 m Sun Mass 1.99 x 1030 kg Radius (mean) 6.96 x 10 m