3. Signal M is 6.8 dB louder than signal W. What is the ratio of the sound intensity of signal M to signal W? M= 6.8W M:W W=W 6.8dB: 1dB Aahhu 4.780 G D 4. The noise from a grinder in a factory is 32,000 times more powerful than the noise from a dishwasher. By how many decibels is the factory noise greater than the dishwasher noise? GiD 32,000:1 FF 5. On a good night, the front row of the Foo Fighters concert would surely result in a 110 dB sound level. A police siren produces about 90 dB. How many police sirens would be needed to produce the same intensity as the front row of the Foo Fighters concert? S B2₂ =110 B₁=90 2 B₁₂ - B₁ = 1010g (1/2) (푶) 6. A loud sound is 90 dB. When the sound is reduced to 5% of its original intensity, what is the decibel level? 3=90

3. Signal M is 6.8 dB louder than signal W. What is the ratio of the sound intensity of signal M to signal W? M= 6.8W M:W W=W 6.8dB: 1dB Aahhu 4.780 G D 4. The noise from a grinder in a factory is 32,000 times more powerful than the noise from a dishwasher. By how many decibels is the factory noise greater than the dishwasher noise? GiD 32,000:1 FF 5. On a good night, the front row of the Foo Fighters concert would surely result in a 110 dB sound level. A police siren produces about 90 dB. How many police sirens would be needed to produce the same intensity as the front row of the Foo Fighters concert? S B2₂ =110 B₁=90 2 B₁₂ - B₁ = 1010g (1/2) (푶) 6. A loud sound is 90 dB. When the sound is reduced to 5% of its original intensity, what is the decibel level? 3=90

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter17: Physics Of Hearing

Section: Chapter Questions

Problem 68PE: (a) Find the intensity in watts per meter squared of a 60.0Hz sound having a loudness of 60 phons....

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