Asked by Chris
I'm not sure how to calculate this question help me! (Grade 11 Physics)
it's sound intensity... Show me how to do it please! (textbook says answer is 3.5 m)
At close proximity, rustling leaves have a sound intensity of about 1.2 x 10^-11 W/m squared. At what distance is the sound at the threshold of hearing (1.0 x 10^-12 W/m squared
it's sound intensity... Show me how to do it please! (textbook says answer is 3.5 m)
At close proximity, rustling leaves have a sound intensity of about 1.2 x 10^-11 W/m squared. At what distance is the sound at the threshold of hearing (1.0 x 10^-12 W/m squared
Answers
Answered by
DrBob222
If we take close proximity to mean about 1 meter, then 1.2 x 10^-11*(1)^2 = 1.0 x 10^-11*d^2
Solve for d. I get 3.46 m which rounds to 3.5. Check my thinking.
Solve for d. I get 3.46 m which rounds to 3.5. Check my thinking.
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