1. The problem statement, all variables and given/known data An Earth satellite moves in a circular orbit 605 km above the Earth's surface. The period of the motion is 96.6 min. What is the speed of the satellite? 2. Relevant equations 3. The attempt at a solution First, I know that it is orbiting 605 km above earth's surface. So, that number plus the radius of earth gives a total for the radius of the motion. That comes out to be about 6976000 meters. Then, I used the equation: T = (2pir)/(v) 96.6 = (2pi(6967000)) / (v) v = 453742.24 But it's marking it as incorrect. Any ideas?