Two People Are Talking at a Distance of 3 $1.1 \times 10 ^ { - 7 } \mathrm {~W} / \mathrm { m } ^ { 2 }$

question 1

Multiple Choice

Two people are talking at a distance of 3.0 m from where you are, and you measure the sound intensity as $1.1 \times 10 ^ { - 7 } \mathrm {~W} / \mathrm { m } ^ { 2 }$
Another student is 4.0 m away from the talkers. Calculate a reasonable estimate for the sound intensity that the other student measures.

• A) \(2.5 \times 10 ^ { - 8 } \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• B) \(7.8 \times 10 ^ { - 7 } \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• C) \(1.5 \times 10 ^ { - 7 } \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• D) \(8.3 \times 10 ^ { - 8 } \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• E) \(6.2 \times 10 ^ { - 8 } \mathrm {~W} / \mathrm { m } ^ { 2 }\)

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Definitions:

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The amount of capital paid by investors for shares that exceeds the par value of the shares; also referred to as share premium.

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An estimate of the market value of an asset or liability, reflecting current conditions and market perceptions.

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