57 587
Assignments Done
Successfully Done
In February 2018
Your physics homework can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Our experts will gladly share their knowledge and help you with programming homework. Keep up with the world’s newest programming trends.

Answer on Acoustics Question for John

Question #2878
On the front row of the concert the sound level reaches a value of 110 dB. In the back row thw sound intensity is reduced by a factor of 1000. What is the decibel level on the back row?
Expert's answer
Decibel level defined as

L1 = 10 log10(I1/I0) dB

where I1 and I0 are the intensities.
I0 is the standard reference sound intensity

L1 = 10*log10 (I1/I0) = 110 dB - sound level on the front row.
L2 = 10*log10 (I2/I0) = 110 dB - sound level on the back row.
L2=10*log10 (I1/1000)/I0 = 10*log10(I1/I0) + 10*log10(1/1000) = 110 - 3 = 107 dB
Answer : 107 dB.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!


No comments. Be first!

Leave a comment

Ask Your question