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KIM [24]
3 years ago
8

The sound intensity at the ear of passenger in a car with a damaged muffler is 8.0 × 10-3 W/m2. What is the intensity level of t

his sound in decibels? Use the threshold of hearing (1.0 × 10-12 W/m2) as the refere
Physics
1 answer:
Mama L [17]3 years ago
4 0

Answer:

99 dB

Explanation:

We have given that sound intensity with a damaged muffler =8× 10^{-3}

we have to find the intensity level of the this sound in decibels

for calculating in decibels we have to use the formula

β=10log\frac{I}{I_0}

  =10log\frac{.008}{10^{-12}}

   =10 log8+10 log10^{9}

   =10 log8+90 log10

   =10×0.9030+90

   =99 dB

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