Asked by Sarah

If Superman could throw a baseball very fast and air friction could be ignored, he could put the baseball into orbit. Assume that the balls orbital radius equals 6.38x10^6m. Earth has a mass of 5.98x10^24kg. How fast must Superman throw the ball?
Answered by oobleck
recall that escape velocity
v = √(2GM/d)
Answered by Evin
2gM
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