PHYSICS 135 Chapter Notes - Chapter 16: Record Producer, Horse Length, Rear Admiral
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Identify and set up: eq. (15. 1) gives the wavelength in terms of the frequency. Use eq. (16. 5) to relate the pressure and displacement amplitudes. Bka (c) max v f = (344 m/s)/1000 hz. 0. 344 m and bk is constant gives max1. Ba constant so max1 1 p p max2 2 and. 3 v = (344 m/s)/6. 9 m 50 hz f. Evaluate: the pressure amplitude and displacement amplitude are directly proportional. For the same displacement amplitude, the pressure amplitude decreases when the frequency decreases and the wavelength increases. Set up: v and and solve for a. f = and. Evaluate: both v and b are larger, but b is larger by a much greater factor, so therefore a is a lot smaller. Identify: use eq. (16. 5) to relate the pressure and displacement amplitudes. Set up: as stated in example 16. 1 the adiabatic bulk modulus for air is. B = calculate from f, and then.
