On a whale-watching expedition, your underwater sound detector picks up a whale sound that has an intensity

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On a whale-watching expedition, your underwater sound detector picks up a whale sound that has an intensity of $9.0 \mu \mathrm{W} / \mathrm{m}^{2}$.

(a) What is the intensity level $\beta$ of this sound?

(b) If your detector tells you that you are $2.3 \mathrm{~km}$ from the whale, what is the power of the emitted signal?

(c) How many whales, emitting sound at the same intensity $I=9.0 \mu \mathrm{W} / \mathrm{m}^{2}$, are needed to produce an intensity level of $100 \mathrm{~dB}$ at your location?

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Principles And Practice Of Physics

ISBN: 9780135610862

2nd Edition

Authors: Eric Mazur

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Question Posted: Apr 06, 2024 12:01 AM

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On a whale-watching expedition, your underwater sound detector picks up a whale sound that has an intensity

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Principles And Practice Of Physics

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