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What is the ratio of the gravitational pull of the sun on

Chapter 13, Problem 1E

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QUESTION:

What is the ratio of the gravitational pull of the sun on the moon to that of the earth on the moon? (Assume the distance of the moon from the sun can be approximated by the distance of the earth from the sun.) Use the data in Appendix F. Is it more accurate to say that the moon orbits the earth, or that the moon orbits the sun?

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QUESTION:

What is the ratio of the gravitational pull of the sun on the moon to that of the earth on the moon? (Assume the distance of the moon from the sun can be approximated by the distance of the earth from the sun.) Use the data in Appendix F. Is it more accurate to say that the moon orbits the earth, or that the moon orbits the sun?

ANSWER:

Solution 1E Gm 1 2 The expression for gravitational force between two objects is given by F = r 2 …..(1), where m 1 and m 2 are the masses of the objects, G is the gravitational constant and ris the separation between the particles. From the Appendix F, Mass of the sun m = s.99 × 10 30kg Mass of the moon m m = 7.35 × 10 22kg 24 Mass of the earth m =e5.97 ×

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