An astronaut on a spacewalk 200km above Earth drops a hammer (mass 2kg), which goes into orbit about the Earth (mass 6x1024kg, radius 6,400km). How long does it take the hammer to orbit Earth?
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An astronaut on a spacewalk 200km above Earth drops a hammer (mass 2kg), which goes into orbit about the Earth (mass 6x1024kg, radius 6,400km). How long does it take the hammer to orbit Earth?
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