Chronic exposure to loud noises can be damaging to one’s hearing. This can be a problem in occupations in which heavy machinery is used. If a machine produces sound with an intensity level of 96.1 dB, what would its intensity level have to be to reduce the intensity by a factor of 2.80 (in dB)?

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Q: What is the sound intensity of a whisper at a distance of 2.0 m, in W/m2? What is the corresponding…

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Q: Find the sound level in dB of 4.72 x 10-2 w/m? ultrasound used in medical diagnostics. dB

A: The expression for find sound level is β=10logII0

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Q: A typical sound level for a buzzing mosquito is 35 dB, and that of a vacuum cleaner is approximately…

A: Given, sound level for a buzzing mosquito=35dB sound level for vacuum cleaner=65dB

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Q: A certain source of sound waves radiates uniformly in all directions. At a distance of 20 m from the…

A: Given,Theh source having intensity level, I = 51 dbdistance, d = 20 mIo = 1.0×10-12 Wm2

Q: e 30 m away is 100 dB. What is the sound intensity in W/m^

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Q: If a 30 dB sound is increased in intensity by a factor of 10“, what is its new intensity level? (dB)

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Q: The sound intensity of two alarms is detected at a particular point. The first alarm has an…

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Q: The intensity of a sound level of 100 db is equal to knowing that the threshold of hearing is 10-12…

A: Given :     Sound level, β = 100 dB     Threshold of hearing, Io = 1×10-12 W m-2 Determine the…

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A: The sound intensity level of the engine, β=140 dB   The threshold intensity, I0=10-12 W/m2

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Q: Suppose a sound has intensity I that is 100,000 times greater than the intensity of the quietest…

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A: Consider the formula to calculate the difference in decibel level of two sounds as

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Q: If the threshold of hearing for humans is 1×10-12 W/m2 , calculate the intensity level β (in…

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Q: ▪ A military jet took off from an aircraft carrier with a sound intensity / of 8.48 x 10² W/m². Find…

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A: since the formula suggests since then   and

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Q: A jet engine emits sound uniformly in all directions, radiating an acoustic power of 3.77 x 10 W.…

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Q: -A car horn outdoors produces a sound intensity level L1 of 90 dB at 10 ft. away.   1. Find the…

A: Given: The sound intensity level is 90 dB at a distance of 10 ft from the source.

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Q: A good hearing aid will uniformly increase the sound intensity of all audible frequencies of sound…

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Q: Find the difference in loudness between an average office with an intensity of 1.26 x 10-7 W/m2 and…

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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.