(20%) Problem 2: A passenger on a train approaching a station at 24 m/s hears a

Question

(20%) Problem 2: A passenger on a train approaching a station at 24 m/s hears a bell ringing in the station. Take the speed of sound to be 343 m/s. G A The passenger hears the bell at a frequency of 382 Hz. What frequency, in hertz, do the people waiting on the station platform hear Grade Summary fource Deductions 0% Potential 100% sino coso tano 7 8 9 Submissions Attempts remaining 3 4 5 6 cotano asino acos0 (49 per attempt) atano otano sinh0 1 2 3 detailed view cosh0 tanho cotanh0 Degree O Radians Submit Hint I give up! Hints 419 deduction per hint. Hints remaining 1 Feedback: S deduction per feedback. All content 2017 Expert TA, LLC

Explanation / Answer

By doppler formula

f = fo (v+vo) /v

382 = fo *(343+24)/343

fo = 382*343/367

= 357 Hz answer

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