Suppose the intensity over the surface of a hemisphere is (10 watt/ cm?). The area of the surface is about (25 x 10 cm) the acoustic power output would have to be... O 2400 watts O 2500 watts O2600 watts O 2700 watts

Suppose the intensity over the surface of a hemisphere is (10 watt/ cm?). The area of the surface is about (25 x 10 cm) the acoustic power output would have to be... O 2400 watts O 2500 watts O2600 watts O 2700 watts

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 129AP: A 0.80-m-long tube is opened at both ends. The air temperature is 26°C. The air in the tube is...

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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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Suppose the intensity over the surface of a hemisphere is (10 watt /cm?). The area of the
surface is about (25 x 10 cm) the acoustic power output would have to be ...
O 2400 watts
2500 watts
O 2600 watts
O 2700 watts

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