1. The problem statement, all variables and given/known data A satellite is in circular orbit above the Earth at an altitude of 7000 km. What is the orbital speed of the satellite? 2. Relevant equations Well, knowing that the mass of earth of 5.98 X 10^24 kg And the radius of earth is 6.38 x 10^6 m What equation do I start with here? The "speed" portion is whats getting me.