Question: Longitudinal Waves in Different Fluids. (a) A longitudinal wave propagating in a water-filled pipe has intensity 3.00 X 10-6w/m2 and frequency 3400 Hz. Find the

Longitudinal Waves in Different Fluids.
(a) A longitudinal wave propagating in a water-filled pipe has intensity 3.00 X 10-6w/m2 and frequency 3400 Hz. Find the amplitude A and wavelength A of the wave. Water has density 1000 kg/m3 and bulk modulus 2.18 X 105 Pa.
(b) If the pipe is filled with air at pressure 1.00 X 105 Pa and density 1.20 kg/m3, what will be the amplitude A and wavelength A of a longitudinal wave with the same intensity and frequency as in part (a)?
(c) In which fluid is the amplitude larger, water or air? What is the ratio of the two amplitudes? Why is this ratio so different from 1.00?

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IDENTIFY Apply Eq1612 and solve for A 2vf with vBp SET UP 27f For air B14210 Pa EXECUTE a The amp... View full answer

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