Question:

- 140 - Th 4:30pm were negli effect? - YouTube www.escort Low bested Prvi un uestion Completion Status: - 0+ 0 S. If a large hou

- 140 - Th 4:30pm
were negli effect? - YouTube
www.escort Low
bested
Prvi un
uestion Completion Status:
-
0+ 0
S.
If a large housefly 3.0 m away from you makes a noise of 39 dB, what is the noise level of 1000 flies at that
distance, assuming interference has a negligible effect?
2.5 points
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QUESTION A
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- 140 - Th 4:30pm were negli effect? - YouTube www.escort Low bested Prvi un uestion Completion Status: - 0+ 0 S. If a large housefly 3.0 m away from you makes a noise of 39 dB, what is the noise level of 1000 flies at that distance, assuming interference has a negligible effect? 2.5 points Save Answer QUESTION A Save and Submit Close Window Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers

Answer

1
%
Given that
hoise level of a house fly = 39 dB
- 8 = 39 dB
Let the noise level of 1000 flies - Be
Now, as we know
intensity]
hoise level = lolog
[Thoresold intensity]
B,
10 Dog
T
Io
B
2
8 - 10 log to
I 2
To
B
1
2
I,
B B = 10 log2 - 10 log 1 2 3 4
B. - ,
10 [ logh-logo-log Iq + log to]
lo log 22
By R,
B + loloy
म
log 1 / +iolog
31 d8 + 1o Dog 1000 dB
39d8 + 10 log 603) dB
I2
z
10
I2
+
I
a
39 dB + 10x3x1
= 39 dB + 30 dB
69 dB
nry
noise level of 1000 flies
= 69 dB

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1 % Given that hoise level of a house fly = 39 dB - 8 = 39 dB Let the noise level of 1000 flies - Be Now, as we know i... Download the app for the rest