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Gravitational fields (A-level only)

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Question 28

An exoplanet, Thalassa, has a mass 4 times that of the Earth. The length of a solar day on Thalassa is 1.5 times that of an Earth day.

If the radius of a geostationary (synchronous) orbit around the Earth is RRR, what is the radius of a synchronous orbit around Thalassa?

63R\sqrt[3]{6} R36​R

93R\sqrt[3]{9} R39​R

943R\sqrt[3]{\frac{9}{4}} R349​​R

363R\sqrt[3]{36} R336​R

Gravitational fields (A-level only) Questions

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