(Solution) An enclosed chamber with sound absorbing walls has a 2.0 m 1.0 m opening for an outside window. A loudspeaker is located outdoors,, 78 m away and... > Snapessays.com

(Solution) An enclosed chamber with sound absorbing walls has a 2.0 m 1.0 m opening for an outside window. A loudspeaker is located outdoors,, 78 m away and...

An enclosed chamber with sound absorbing walls has a 2.0 m × 1.0 m opening for an outsidewindow. A loudspeaker is located outdoors,, 78 m away and facing the window. The intensity level ofthe sound entering the window space from the loudspeaker is 79 dB. Assume the acoustic output of theloudspeaker is uniform in all directions and that the acoustic energy incident upon the ground iscompletely absorbed and therefore is not reflected into the window. The threshold of hearing is 1.0 × 10-12 W/m2. The acoustic power entering through the window space is closest to?A) 160 ?W.B) 79 ?W.C) 320 ?W.D) 790 ?W.E) 1600 ?W.

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This question was answered on: Sep 21, 2023

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