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Homework Statement
1) A satellite is in circular orbit around the sun. Which requires the greater change in satellite's speed: to escape the solar system or fall into the sun?
2)Why does atmospheric friction increase the speed of a satellite in low Earth orbit?
Homework Equations
The Attempt at a Solution
1) Not sure..Surely the change in speed in 2 cases would be the same?
2) Again ..not sure.. :S