1. The problem statement, all variables and given/known data As a moon follows it's orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 11%. Find the ratio rmax / rmin, where rmax is the moon's maximum distance from the center of the planet and rmin is the minimum distance. 2. Relevant equations Newton's law of Gravitation F = G m1m2 / r2 3. The attempt at a solution I found the ratio to be, rmax / rmin = 0.949 to 3 significant digits. My text book says the ratio is 1.05. I think the text if wrong. Can someone try this problem and let me know what you get. Thanks, R.