A woman is sitting at a bus stop when an ambulance with a siren wailing at...

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A woman is sitting at a bus stop when an ambulance with a siren wailing at...

A woman is sitting at a bus stop when an ambulance with a siren wailing at 415 Hz approaches at 28.0 m/s (about 63 mph). Assume the speed of sound to be 343 m/s.

What frequency (in Hz) does the woman hear?

f_a =

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Answer 1

Answer #1

Here,

f0 = 415 Hz

for the frequency heard

frequency heard = f0 * v/(v - vs)

frequency heard = 415 * 343/(343 - 28)

frequency heard = 451.9 Hz

the frequency heard by the woman is 451.9 Hz

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Answer 2

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