how to estimate the speed of sound in air
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vibration in atmosphere is called sound and movement of a vehicle due to time is called speed
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Assuming the speed of sound in airis 345 m/s, determine the wavelength of the soundcorresponding to this upper range of audible hearing. Let λ = wavelength. Use v = f. λ where v = 345 m/s and f = 20 000 Hz.
in our book its written the speed of sound in air is 330m per second
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