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Gaokao Physics Practice Question

利用三颗位置适当的地 球同步卫星,可使地球赤道上任意两点之间保持无线电通讯。目前,地球同步卫 星的轨道半径约为地球半径的 6.6 倍。假设地球的自转周期变小,若仍仅用三颗同步卫星来实现上述目的, 则地球自转周期的最小值约为

  1. A.1h
  2. B.4h
  3. C.8h
  4. D.16h

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