Physics
Physics, 27.11.2019 23:31, mildredelizam

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near them would be the sound level near a noisy air conditioner is 70 . if two such units operate side by side, the sound level near them would be 70 db. 73 db. 105 db. 140 db.

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The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the s...

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