Question

2. The decibel level of a jackhammer is 125 dB relative to the threshold of hearing. Determine the sound intensity produced by the jackhammer
0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
2. The decibel level of a jackhammer is 125 dB relative to the threshold of hearing....
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A 60 year old person has a threshold of hearing of 81.0 dB for a sound...

    A 60 year old person has a threshold of hearing of 81.0 dB for a sound with frequency f=10,000 Hz. By what factor must the intensity of a sound wave of that frequency, audible to a typical young adult, (sound level=43.0 dB) be increased so that it is heard by the older person.

  • Using an intensity of 1 × 10-12 W/m2 as a reference, the threshold of hearing for...

    Using an intensity of 1 × 10-12 W/m2 as a reference, the threshold of hearing for an average young person is 0 dB. Person 1 and person 2, who are not average, have thresholds of hearing that are β1 = -11.0 dB and β2 = +9.00 dB. What is the ratio I1/I2 of the sound intensity I1 when person 1 hears the sound at his own threshold of hearing compared to the sound intensity I2 when person 2 hears the...

  • An opera singer produces a decibel level of 109 dB at a distance of 0.400 m.The...

    An opera singer produces a decibel level of 109 dB at a distance of 0.400 m.The area of a typical eardrum is about 5.00 ✕ 10−5 m2.mAssume the sound propagates as a spherical wave. Determine the sound intensity I and power P incident on a typical eardrum at distances of 3.00 m and 21.0 m from the singer. ADDITIONAL PROBLEMS An opera singer produces a decibel level of 109 dB at a distance of 0.400 m. The area of a...

  • Hearing damage may occur when a person is exposed to a sound intensity level of 90.0...

    Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of human hearing) for a period of 9.00 hours. An eardrum has an area of 3.42 x 10-4 m2. How much sound energy is incident on the eardrum during this time?

  • 5. The threshold of human hearing at a frequency of 1.0 kHz is usually defined to...

    5. The threshold of human hearing at a frequency of 1.0 kHz is usually defined to be exactly 0 dB (for purposes of significant figures, consider this to be an exact, pure number). A research study shows that if exposed to 95 dB of a sound source for a long time, the threshold of hearing will shift upward to 32 dB. This accounts for why it is hard to hear normal conversations for some time after leaving a loud concert....

  • Hearing damage may occur when a person is exposed to a sound intensity level of 90.0...

    Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of human hearing) for a period of 9.00 hours. An eardrum has an area of 3.73 x 10-4 m2. How much sound energy is incident on the eardrum during this time? Number Units

  • The decibel scale is a logarithmic scale for measuring the sound intensity level. Because the decibel...

    The decibel scale is a logarithmic scale for measuring the sound intensity level. Because the decibel scale is logarithmic, it changes by an additive constant when the intensity as measured in W/m2 changes by a multiplicative factor. The number of decibels increases by 10 for a factor of 10 increase in intensity. The general formula for the sound intensity level, in decibels, corresponding to intensity I is β=10log(II0)dB, where I0 is a reference intensity. For sound waves, I0 is taken...

  • What is the decibel level of a sound that is 1/3 as intense as a 98.0-dB...

    What is the decibel level of a sound that is 1/3 as intense as a 98.0-dB sound?

  • A 25 MW jet engine produces a sound level of 120 dB, the threshold of pain,...

    A 25 MW jet engine produces a sound level of 120 dB, the threshold of pain, at 100 m from the engine. (Recall that the threshold of human hearing is 1 x 10-12 W/m2.) (a) What portion of the jet engine power is lost in producing this sound? (b) You are at your quiet summer house (ambient sound level is 40 dB) and you can just hear the sound of the same jet engine at the airport. How far away...

  • [2] Explain why we use a logarithmic decibel scale instead of Pascals when discussing the energy...

    [2] Explain why we use a logarithmic decibel scale instead of Pascals when discussing the energy n sound waves E. F. [ Sound intensity & sound intensity level - Watch units! a. [0.5] Determine the sound intensity level of a sound whose intensity is 0.0051 W/m2 b. [0.5] Determine the sound intensity of a sound whose sound intensity level is 72 dB (re: 10-12 W/m2). G. Sound power & sound power level - Watch units! a. [0.5] Determine the sound...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT