what is the wavelength of a 20.0 hz wave with a speed of 331 m/s

Question

the lowest pitch that the average human can hear has a frequency of 20.0 hz

Answer 1

Hi!  The formula we have to use for this problem is Velocity = Frequency x Wavelength, or v=fλ.  If we plug in the relevant numbers, we see that 331 m/s = 20.0 Hz * λ; solving for λ gives us  wavelength of 16.55 m!

 

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