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Mathematics, 17.02.2020 21:04 castroarlety
Receiver A detects a sound level of 75 dB at a distance of 25 m from a speaker, which emits sound equally in all directions. Receiver B detects a sound level of 55 dB from the same speaker. How far is receiver B from the speaker?
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Receiver A detects a sound level of 75 dB at a distance of 25 m from a speaker, which emits sound eq...
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