problem12_09

University Physics with Modern Physics with Mastering Physics (11th Edition)

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12.9: Denote the earth-sun separation as 1 r and the earth-moon separation as 2 r . a) ( 29 , 10 30 . 6 ) ( 20 2 2 E 2 2 1 S M Ν × = + + r m r r m Gm toward the sun. b)The earth-moon distance is sufficiently small compared to the earth- sun distance ( r 2 << r 2 ) that the vector from the earth to the moon can be taken to be perpendicular to the vector from the sun to the moon. The components of the
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Unformatted text preview: gravitational force are then , 10 99 . 1 , 10 34 . 4 20 2 2 E M 20 2 1 S M Ν × = Ν × = r m Gm r m Gm and so the force has magnitude Ν × 20 10 77 . 4 and is directed ° 6 . 24 from the direction toward the sun. c) ( 29 ( 29 , 10 37 . 2 r 20 2 2 E 2 2 1 S M Ν × = --r m r m Gm toward the sun....
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This document was uploaded on 02/05/2008.

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