Physics, 13.05.2021 20:00 nook4boo

What is the wavelength of the sound you hear as a train blowing its whistle is coming towards you?
[Wavelegnth is shorter than the sound at rest ]

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What is the wavelength of the sound you hear as a train blowing its whistle is coming towards you? [Wavelegnth is shorter than the sound at rest ]

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What is the wavelength of the sound you hear as a train blowing its whistle is coming towards you?
[Wavelegnth is shorter than the sound at rest ]