Unformatted text preview: Provide your answer in dB. For your information, the answer to Kinsler et !T $ " # 1' $ p ' al's problem 5.9.2a is =& )& ) . To % " ( % Po ( 2. Problem 5.12.7 in Kinsler et al. Use 100C at the temperature value instead of 80C for parts b, c, and d. 3. A plane wave is propagated in a gas. The propagation speed of the gas is doubled from 360 to 720 m/s. All other quantities identified in bold remain the same. Which quantities change and, for those that change, indicate whether they "increase" or "decrease." temperature (C) 0 frequency (Hz) 1000 angular frequency (r/s) 6283 propagation speed (m/s) 360 wave number (1/m) 17.45 wavelength (m) 0.3600 equilibrium density (kg/m3) 2.43 1.50 ratio of specific heats () B/A 0.50 equilibrium pressure (kPa) 210.0 isothermal bulk modulus (kPa) 210.0 adiabatic bulk modulus (kPa) 314.9 peak particle displacement amplitude (mm) 0.023 peak particle velocity amplitude (cm/s) 14 2 peak particle acceleration amplitude (m/s ) 898 peak condensation amplitude 0.00040 peak acoustic pressure amplitude...
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This note was uploaded on 09/19/2009 for the course ECE 473 taught by Professor Obrian during the Fall '08 term at University of Illinois at Urbana–Champaign.
- Fall '08