A weak pressure wave (sound wave), with a pressure change p 40 Pa, propagates through still air

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A weak pressure wave (sound wave), with a pressure change Δp ≈ 40 Pa, propagates through still air at 20°C and 1 atm. Estimate
(a) The density change;
(b) The temperature change; and
(c) The velocity change across the wave.

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Fundamentals of Thermal-Fluid Sciences

ISBN: 978-0078027680

5th edition

Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala

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Question Posted: Jan 20, 2010 12:43 AM

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A weak pressure wave (sound wave), with a pressure change p 40 Pa, propagates through still air

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For air at 20C speed of sound a 343 ms and 12 kgm...View the full answer

Fundamentals of Thermal-Fluid Sciences

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