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A dog whistle is designed to produce a sound with a frequency beyond that which can be heard by humans (between 20,000 Hz and 27,000 Hz). If a particular whistle produces a sound with a frequency of 25,000 Hz, what is the sound’s speed? Assume the wavelength of this sound wave in air is 0.013m. *
4 points
325 m/s
250 m/s
113 m/s
467 m/s

Respuesta :

Answer:

Speed of the sound in air is 325 m/s

Explanation:

As we know that the frequency of the sound is given as

[tex]f = 25000 Hz[/tex]

wavelength of the sound is given as

[tex]\lambda = 0.013 m[/tex]

now we have

[tex]v = \lambda f[/tex]

so we have

[tex]v = (0.013)(25000)[/tex]

[tex]v = 325 m/s[/tex]

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