8206b(82日大)一顆人造衛星(artificial,satellite)在地球

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Uploaded by on Jun 24, 2008

(82日大-8206b)一顆人造衛星在地球表面高度為R的圓周軌道上運行(R為地球半徑)。如果在該高度的重力加速度為a,則此人造衛星的速率為_______。

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