ZuoTi.Pro
Question

2. (2 pts) A sound level of 150 dB is measured at 2 meters from a jet engine. Find the sound intensity B of the jet engine at

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

At distance, r = 2m Sound level B = 150dB B = 10109.15.) B = 10 109 ( 11 ) Let at distance, 8z = 20 sound liever = B B2 - 10/B.B2 = 2000g, o ( 20 ) - 20109,0 (rc) = 20 B = B,+20 = 150-20 B2 = 130 dB)

0 0
Add a comment
Know the answer?
Add Answer to:
2. (2 pts) A sound level of 150 dB is measured at 2 meters from a...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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

  • 11. The sound level in decibels (dB) is given by dB-10log(101x), where x is the intensity of the sound given in W/c...

    11. The sound level in decibels (dB) is given by dB-10log(101x), where x is the intensity of the sound given in W/cm2. a) Determine the sound level in dB for a sound having an intensity of 2 x 1012 W/cm b) What would be the sound level in dB if the sound intensity were doubled? 11. The sound level in decibels (dB) is given by dB-10log(101x), where x is the intensity of the sound given in W/cm2. a) Determine the...

  • n Review Id During takeoff, the sound intensity level of a jet engine is 150 dB...

    n Review Id During takeoff, the sound intensity level of a jet engine is 150 dB at a distance of 22 m. Part A What is the sound intensity level at a distance of 1.0 km? Express your answer to two significant figures and include the appropriate units. НА ? B = 253.7 dB Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining

  • What is the level of a sound whose intensity is 1.6 x 10-6 W/m2? (Io =...

    What is the level of a sound whose intensity is 1.6 x 10-6 W/m2? (Io = 1 x 10-12 W/m2) A person standing a certain distance from an airplane with four equally noisy jet engines is experiencing a sound level of 137 db. What would this person experience if the captain shut down all but one engine?

  • 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...

  • The sound intensity level in a certain room of temperature 295 K is measured to be...

    The sound intensity level in a certain room of temperature 295 K is measured to be 98 dB. What is the sound intensity in W/m2? The sound intensity is ____W/m2.

  • A) What is the intensity (in W/m2) of a sound that has a level 3.00 dB...

    A) What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower than a 4.15 ✕ 10−9 W/m2 sound? B) what is the intensity in W/m2 of a sound that is 10.0 dB higher than a 4.15 x10-9 wW/m2 sound?

  • What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower...

    What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower than a 2.42 ✕ 10−9 W/m2 sound?   W/m2 (b)What is the intensity (in W/m2) of a sound that is 10.0 dB higher than a 2.42 ✕ 10−9 W/m2 sound?   W/m2

  • Using a frequency-measuring lab device, I am to map out the sound intensity level distribution (dB)...

    Using a frequency-measuring lab device, I am to map out the sound intensity level distribution (dB) in a room (both with & without music playing) to create a 5x5 grid of 25 data points. Using the following data table of sound intensity level β(dB) and corresponding intensity I(W/m2), I also need to find the intensity to the nearest order of magnitude for the points on my sound intensity level maps. Here is the data table: Intensity levelβ(dB) Intensity I(W/m2)   Example/effect...

  • 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...

  • 1. If a sound of frequency 1000 Hz has intensity level 30 dB, what would be...

    1. If a sound of frequency 1000 Hz has intensity level 30 dB, what would be the intensity level of sound frequency 50 Hz which appears to have equal loudness? (Answer= 60 dB) 2. Intensity of 30 dB, 1000 Hz sound= (Answer= 1.000 x 10-9 W/m^2) *3. What is intensity (in W/m^2) of the equal loudness 50 Hz sound? (Answer is NOT 50.12 x 10^-12) *4. What is the ratio of the pressure variation (in amplitude) of the equal loudness...

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