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OpenStudy (anonymous):
a new car has an interior sound level of 70 dB at 50 km/h. A second car, at the same speed, has an interior sound level that is two times more intense than that of the new car. calculate the sound level inside the second car.
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OpenStudy (anonymous):
i know that the equation to calculate the intensity of sound is \[L =10 \log(I/I _{0})\]
OpenStudy (anonymous):
U know the value of \[I_{0}\]?????
OpenStudy (anonymous):
oh uh... it just gives me the 70dB ...
OpenStudy (anonymous):
\[I_{0}???????\] I am asking u this.
OpenStudy (anonymous):
0 ?
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OpenStudy (anonymous):
Nope, refer ur notes.
OpenStudy (anonymous):
U need to know at least this.
OpenStudy (anonymous):
70 x 2? so 140? ... :S
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