- #1

annafagin

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- Homework Statement
- A sound of intensity I = 10-6 W/m2 falls on a detector of area A = 7 x 10-5 m2. (This is about the size of an eardrum.)

If the sound continues for 30 s, what is the amount of energy received in joules?

- Relevant Equations
- I = 10-6 W/m2

I'm not sure! I'm really lost on this problem to be honest.