The moon orbits the earth with a tangential velocity of 1,022 m/s, and the orbital radius of the moon around the earth is 3.85 x 10^8m. The mass of the moon is 7.35 x 10^22 kg. a). What is the orbital period of the moon around the earth? Convert to days. b). What is the net force acting on the moon? c). Using Newton’s law of universal gravitation, estimate the mass of the earth using your answer from part(b) above.

Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter7: Gravity
Section: Chapter Questions
Problem 7PQ: Model the Moons orbit around the Earth as an ellipse with the Earth at one focus. The Moons farthest...
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The moon orbits the earth with a tangential velocity of 1,022 m/s, and the orbital radius of the moon around the earth is 3.85 x 10^8m. The mass of the moon is 7.35 x 10^22 kg. a). What is the orbital period of the moon around the earth? Convert to days. b). What is the net force acting on the moon? c). Using Newton’s law of universal gravitation, estimate the mass of the earth using your answer from part(b) above.
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