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Two satellites, A and B, orbit at radii of 7.0 x 10^6 m and 2.8x 10^7...

Two satellites, A and B, orbit at radii of 7.0 x 10^6 m and 2.8x 10^7 m, respectively. Which satellite has
the longer rotation period around earth? What is the ratio of the satellites’ orbital periods?

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