1. The problem statement, all variables and given/known data "Determine the acceleration due to gravity on the planet Mercury which has a mass of 3.30*10^23kg and a diameter of 4878 km. 2. Relevant equations Gmp/rp2 Mp is mass of planet Rp is radius of planet 3. The attempt at a solution First off I needed to change the diameter into the radius. In my class I have to convert km to m. 4878 km*1000= 4,878,000 m 4,878,000/2= 2,439,000 2,439,000 is the radius Next, plugged in. G=6.67*10^-11 Gmp/rp2 (6.67*10^-11)(3.30*10^23)/2,439,000^2 = 3.70 g on Mercury. I'm pretty sure this is correct just want to make sure. Thanks for looking it over!