You are at a railroad crossing waiting for a freight train traveling at a speed of 37.3 m/s to pass by. The frequency of the train's horn is 325 Hz. (Use 343 m/s as the speed of sound.) (a) Determine the overall change in frequency you detect as the train moves from approaching to receding. Use the sign of your answer to indicate whether the frequency increases or decreases. (b) Determine the overall change in wavelength you detect as the train moves from approaching to receding. Use the sign of your answer to indicate whether the wavelength increases or decreases.

You are at a railroad crossing waiting for a freight train traveling at a speed of 37.3 m/s to pass by. The frequency of the train's horn is 325 Hz. (Use 343 m/s as the speed of sound.) (a) Determine the overall change in frequency you detect as the train moves from approaching to receding. Use the sign of your answer to indicate whether the frequency increases or decreases. (b) Determine the overall change in wavelength you detect as the train moves from approaching to receding. Use the sign of your answer to indicate whether the wavelength increases or decreases.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter13: Mechanical Waves

Section13.7: The Doppler Eff Ect

Problem 13.7QQ

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