problem15_74

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

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15.74: (a) The breaking stress is , m N 10 0 . 7 2 8 2 × = πr F and the maximum tension is N, 900 = F so solving for r gives the minimum radius m. 10 4 . 6 4 ) m N 10 (7.0 N 900 2 8 - × × = = π r The mass and density are fixed, , 2 L πr M ρ = so the minimum radius gives the maximum length m. 40 . 0 ) m kg 7800 ( m) 10 (6.4 kg 10 0 . 4 3 2 4 3 2 = = = - - × × π ρ πr M L (b) The fundamental frequency is
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This document was uploaded on 02/05/2008.

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