problem12_80

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

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12.80: Outside the planet it behaves like a point mass, so at the surface: 2 2 : R GM g mg R GmM ma F = = = Get where , is density The . 4 : 0 2 br ρ ρ dr r dV dm M M - = = = = π ρ ρ 3 3 0 m kg 10 0 . 15 × = ρ at the center at the surface, R s b ρ ρ ρ - = × = 0 so , m kg 10 0 . 2 3 3 S ( 29 + = - - = - = - = s R ρ ρ πR R ρ ρ πR ρ πR πbR R ρ π dr πr br ρ M 0 3 s 0 4 0 3 4 3 0 2 0 0 3 1 3 4 3 4 4 ( 29 ( 29 ( 29 2 3 3 3 3 2 2 11 6 0 2 0 3 1 3 2
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Unformatted text preview: . 2 3 m kg 10 . 15 kg Nm 10 67 . 6 m 10 38 . 6 3 1 = × + × × × + = + = =-π ρ ρ πRG R ρ ρ R Gπ R GM g s s...
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  • Trigraph, 2 kg, 10 3 kg, 10 6 m, 1 3 g, 9.36 m

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