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Gaokao Physics Practice Question

若一均匀球形星体的密度为 $\rho$, 引力常量为 $G$, 则在该星体表面附近沿圆轨道绕其运动的卫 星的周期是

  1. A.$\sqrt{\frac{3 \pi}{G \rho}}$
  2. B.$\sqrt{\frac{4 \pi}{G \rho}}$
  3. C.$\sqrt{\frac{1}{3 \pi G \rho}}$
  4. D.$\sqrt{\frac{1}{4 \pi G \rho}}$

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