TrinitieW118581 TrinitieW118581

31-10-2022
Mathematics

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Speakers loudness. Measured in decibel (dB) is inversely proportional to the square of the distance d of the listener from the speaker.If the loudness is 20 dB when the listener is 6 feet away from the speaker.What is loudness when the listener is 3 ft away from the speaker

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