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

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Advance Math

If a sound with frequency fs is produced by a source travelingalong a line with speed vs. If an observer is traveling with speedvo along the same line from the opposite direction toward thesource, 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 1.5m/s2. A train is approaching you from the opposite direction on theother track at 32 m/s, accelerating at 1.8 m/s2, and sounds itswhistle, which has a frequency of 458 Hz. At that instant, what isthe perceived frequency that you hear? (Round your answer to onedecimal place.) Hz

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

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Answer Considera sound with frequency fs is    See Answer
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