Chapter_16 - Chapter 16 Sound & hearing Responsible for...

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Chapter 16 Responsible for sections 1, 4-8
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Traveling sound wave • Displacement of an infinitesimal volume of molecules • s(x,t) = Acos(kx ω t) • Pressure fluctuation • p(x,t) = BkAsin(kx ω t) bulk modulus = Δ p/ Δ V/V
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Standing sound waves • See fig. 16.14 • Displacement node same location as pressure antinode • Displacement antinode same location as pressure node • Normal modes in pipe organ open at both ends. See fig. 16.18 • Normal modes in pipe organ open at one end and closed at the other end. See fig. 16.18
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consists of a metal tube of length L and diameter L/5. The tube is open at both ends. You stretch a string across one end of the tube. The mass per unit length of the string is μ . You want the frequency of the third-harmonic standing wave on the string to be the same as the second harmonic for sound waves in the air column. The speed of sound waves in the air column is v s . What must the tension in the string
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This note was uploaded on 04/06/2008 for the course PHYS 2306 taught by Professor Ykim during the Spring '06 term at Virginia Tech.

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Chapter_16 - Chapter 16 Sound & hearing Responsible for...

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