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Transcribed Image Text:Calculate the wavelengths in air at 20°C for sounds
in the maximum range of human hearing. The
speed of sound in air is 343 m/s.
Part A
Calculate the wavelength of a 20-Hz wave.
Express your answer to two significant figures and include the appropriate units.
Alow =
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Part B
Ti
μA
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ΜΑ
?
Calculate the wavelength of a 20,000-Hz wave.
Express your answer to two significant figures and include the appropriate units.
?
Transcribed Image Text:Part C
What is the wavelength of a 22-MHz ultrasonic wave?
Express your answer to two significant figures and include the appropriate units.
Aultrasonic =
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0
μᾶ
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