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Last question! Please help me. You don't have to give the answer, just tell me how to start the equation. BUT if you want to share the answer, feel free! Thank you :)


A train blows its whistle to warn traffic of its approach. The sound waves are moving at a speed of 331 m/s. The frequency of the waves is 15 Hz. What is the wavelength?

Respuesta :

Explanation :

It is given that :

speed of sound waves, [tex]v=331\ m/s[/tex]

frequency of sound waves, [tex]\nu=15\ Hz[/tex]

The relation between speed of sound wave and wavelength is

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

[tex]\lambda=\dfrac{v}{\nu}[/tex]

[tex]\lambda=\dfrac{331\ m/s}{15\ Hz}[/tex]

[tex]\lambda=22.06\ m[/tex]

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