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An electric guitar's amplifier is at a distance
of 4.7 m.
Find the intensity of its sound waves when
its power output is 0.28 W.
Answer in units of W/m².
Find the intensity of the sound waves when
the amplifier's power output is 0.64 W.
Answer in units of W/m².
Find the intensity of the sound waves when
the amplifier's power output is 3.7 W.
Answer in units of W/m².

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