1. The problem statement, all variables and given/known data What is the ratio of kinetic energy to potential energy, of a satellite orbiting a mass M around a radius R. 2. Relevant equations ke = 1/2 (mv^2)/r, pe = -Gmm/r^2 (im not really sure of these, i dont have my book with me) 3. The attempt at a solution this was a problem on my test, and i dont know if i got it right, so i would like to know what the answer is. i had no idea how to do this so i just did 2ke = pe ke/pe = 1/2. what is the answer? i know i got it wrong hehe any input is appreciated! thanks!