When the plainfin midshipman fish (Porichthys notatus) migrates from deep Pacifi

Question

When the plainfin midshipman fish (Porichthys notatus) migrates from deep Pacific waters to the west coast of North America each summer, the males begin to sing their "love song," which some describe as sounding like a low-pitched motorboat. Houseboat residents and shore dwellers are kept awake for nights on end by the amorous fish. The love song consists of a single note, the second A flat below middle C. (Information on the musical scale is given in the table.) Chromatic Musical Scale Note Frequency ({ m Hz}) { m Middle,C} 261.7 { m C^sharp (C-sharp), m D^lat (D-flat)} 277.2 { m D} 293.7 { m D^sharp, E^lat} 311.2 { m E} 329.7 { m F} 349.2 { m F^sharp, G^lat} 370.0 { m G} 392.0 { m G^sharp, A^lat} 415.3 { m A} 440.0 { m A^sharp, B^lat} 466.2 { m B} 493.9 { m C} 523.3 Part A If the speed of sound in seawater is 1531 { m m/s}, what is the wavelength of the midshipman's song? Express your answer using four significant figures. Part B What is the wavelength of the sound after it emerges into the air? Express your answer using three significant figures.

Explanation / Answer

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