45. When the bell in a clock tower rings with a sound of 475 Hz, a pigeon roosting in●the belfry flies directly away from the bell. If the pigeon hears a frequency of 448 Hz,what is its speed?46. A car approaches a train station with a speed of 24 m/s. A stationary train at thestation sounds its 166-Hz horn. What frequencv is heard by the driver of the car?

Answered: Image /qna-images/answer/30282a95-eaa4-44d4-b9a6-083d3333e663.jpg

Answered: .. When the bell in a clock tower rings…

.. When the bell in a clock tower rings with a sound of 475 Hz, a pigeon roosting in the belfry flies directly away from the bell. If the pigeon hears a frequency of 448 Hz, what is its speed?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter17: Sound

Section: Chapter Questions

Problem 104P: A piano tuner uses a 512-Hz tuning fork to tune a piano. He strikes the fork and hits a key on the...

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Concept explainers

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.

Question

45. When the bell in a clock tower rings with a sound of 475 Hz, a pigeon roosting in
●
the belfry flies directly away from the bell. If the pigeon hears a frequency of 448 Hz,
what is its speed?
46. A car approaches a train station with a speed of 24 m/s. A stationary train at the
station sounds its 166-Hz horn. What frequencv is heard by the driver of the car?

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