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The tensile stress in a thick copper bar is 99.5% of its elastic breaking point of 13.0 X 1010 N/m2. If a 500-Hz sound wave is transmitted through the material,
(a) What displacement amplitude will cause the bar to break?
(b) What is the maximum speed of the elements of copper at this moment?
(c) What is the sound intensity in the bar? |
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