The sound level produced by one singer is 84.

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October 30, 2020
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The sound level produced by one singer is84.6 dB.What would be the sound level producedby a chorus of 28 such singers (all singing atthe same intensity at approximately the samedistance as the original singer)?

The sound level produced by one singer is 84.

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An insulated beaker with negligible mass contains liquid water with a mass of 0.335 kg and a temperature of 69. How much ice at a temperature of -18….

2CrO42(aq) + 2H+(aq) — Cr2O72(aq) + H2O(l) By adding NaOH the reaction favors the reactants because the solution just stayed yellow.