Answered: A man drops a stone into a mine shaft…

A man drops a stone into a mine shaft 78.4 m deep. Assuming the temperature of air is 20 OC, how long after will it be before he hears the sound striking the bottom?* 0.23 s O4.00 s 3.77 s 4.23 s

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter14: Sound

Section14.3: The Speed Of Sound

Problem 14.1QQ: Which of the following actions will increase the speed of sound in air? (a) decreasing the air...

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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

A man drops a stone into a mine shaft 78.4 m deep. Assuming the
temperature of air is 20 OC, how long after will it be before he hears the
sound striking the bottom? *
0.23 s
4.00 s
3.77 s
4.23 s

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