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0-11 points OSUniPhys1 17.3.P.072. Loudspeakers can produce intense sounds with surprisingly small energy input in spite of their low efficiencies. Calculate the power input needed (in W) to produce a 88.1 dB sound intensity level for a 10.5 cm diameter speaker that has an efficiency of 1.06%. (This value is the sound intensity level right at the speaker.)
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15 12 13 14 1 19 20 21 22 e+, 1.0 다 g-0寸 16 2 0.007 2019

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0-11 points OSUniPhys1 17.3.P.072. Loudspeakers can produce intense sounds with surprisingly small energy input in spite...
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