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A sound source moves with a speed of 80 ...

A sound source moves with a speed of `80 m//s` relative to still air toward a stationary listener. The frequency of sound is `200 H_(Z)` and speed of sound in air is `340 m//s`. (a) Find the wavelength of the sound between the source and the listener. (b) Find the frequency heard by the listener.

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`f' = f ((nu)/(nu - nu_(s))) = 200 ((340)/(340 - 80))`
`= 261.53 H_(Z) ~~ 262 H_(Z)`
`lambda' = (nu)/(f') = (340)/(261.53) = 1.3 m`
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