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Question: In recent years, astronomers have found planets orbiting nearby stars that are quite different from planets in our solar system. Kepler-12b, has a diameter that is 1.7 times that of Jupiter (RJupiter = 6.99 Ã- 107 m), but a mass that is only 0.43 that of Jupiter (MJupiter = 1.90 Ã- 1027 kg ). What is the value of g on this large, but low-density, world?

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