A sound wave with frequency 50 Hz moves at a speed of around 350 m/s in air. It travels into a wall, where it now moves at 3500 m/s. What is the frequency of the sound wave while it is inside the wall? Explain.

A sound wave with frequency 50 Hz moves at a speed of around 350 m/s in air. It travels into a wall, where it now moves at 3500 m/s. What is the frequency of the sound wave while it is inside the wall? Explain.

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 33P: A sound wave is modeled with the wave function P=1.20Pasin(kx6.28104s1t) and the sound wave travels...

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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.

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3. A sound wave with frequency 50 Hz moves at a speed of around 350 m/s in air. It travels into a wall,
where it now moves at 3500 m/s. What is the frequency of the sound wave while it is inside the
wall? Explain.

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