If a sound with frequency fs is produced by a source traveling along a line with...

If a sound with frequency fs is produced by a source traveling along a line with speed vs. If an observer is traveling with speed vo along the same line from the opposite direction toward the source, then the frequency of the sound heard by the observer is fo = c + vo c − vs fs where c is the speed of sound, about 332 m/s. (This is the Doppler effect.) Suppose that, at a particular moment, you are in a train traveling at 30 m/s and accelerating at 1.5 m/s2. A train is approaching you from the opposite direction on the other track at 32 m/s, accelerating at 1.8 m/s2, and sounds its whistle, which has a frequency of 458 Hz. At that instant, what is the perceived frequency that you hear? (Round your answer to one decimal place.) Hz

How fast is it changing? (Round your answer to two decimal places.) Hz/s

Expert Solution

Answer :-

Consider a sound with frequency fs is produced by a source traveling along a line with speed vs. If an observer is traveling with speed vo along the same line from the opposite direction toward the source,

c = the speed of sound

Colby Messinger answered 2 years ago

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