I've had alot of trouble solving this question. if anyone can explain how to solve it with steps and explanations that would be amazing!! Thank you!
A farmer is awakened by the “cock-a-doodle-doo” of a rooster, which has an intensity
level of 39dB. The rooster wakes up the farmer’s cow, causing the cow to start
“mooing” at an intensity level of 37dB. What is the total intensity level of the noise
made by the rooster and the cow?
A farmer is awakened by the “cock-a-doodle-doo” of a rooster, which has an intensity
level of 39dB. The rooster wakes up the farmer’s cow, causing the cow to start
“mooing” at an intensity level of 37dB. What is the total intensity level of the noise
made by the rooster and the cow?
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dB = 10*log(base10)P
so P = 10^(dB/10)
39dB => P = 10^3.9 = 7943
37dB => P = 10^3.7 = 5012
Total P = 12955
Convert back to dB = 10*log(12955) = 41 dB
(2 s.f.)
so P = 10^(dB/10)
39dB => P = 10^3.9 = 7943
37dB => P = 10^3.7 = 5012
Total P = 12955
Convert back to dB = 10*log(12955) = 41 dB
(2 s.f.)