1. The mass and radius of the earth’s moon are 7.35 x 1022 kg and 1.74 x 106m, respectively. Calculate the orbital and escape velocities from the moon. 2. It is known that the period of revolution of the earth about the sun is 365.3 days and that the semi-major axis of the earth’s orbit is 1.495 x m. An astronomer notes that the period of a distant planet is 29.7 earth years. What is the semi-major axis of the distant planet’s orbit? Check in a reference source (encyclopedia, online, or the like) what planet of the solar system this might be.
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