Answer to Question #184968 in Civil and Environmental Engineering for John Prats

Question

In a factory, three machines produce noise with intensity levels of 85 dB, 90 dB, and 93 dB. When all three are running, what is the intensity level?

Answer 1

Intensity of sound $\Iota= \Iota_010^{\frac{\beta}{10d\beta}}$

$\Iota_{total} = \Iota_1 + \Iota_2+ \Iota_3$

$\beta_{total}= 10d\beta\log_{10}$$({\frac{I_{total}}{I_{0}}})$

$\beta_{total}=$ $10d\beta\log_{10}$ $(10^{\frac{85dB}{10}} + 10^{\frac{90dB}{10}} +10^{\frac{93dB}{10}})$

$\beta_{total}= 95.2dB$