Question

014 10.0 points Isolated in an otherwise quiet country field is a single sound source. When you stand 100 m from this source, the sound level from it is 35 dB. What average power is being emitted by the source? 1.3 x 103 w 2.3 x 10-3 w 3.4 x 104 W 4.4 x 10-4 w I 5.2 x 10 W 6.6 x 10-6 W 7.5 x 10 W 8.5 x 10-5 W 9.2 x 10-2 W

Answer 1

L(dB) -tol0, 35 SOund lever gven 10 when dstance 3.5 =100M 3.5 jo 17 - 8.5 3.5 -12 f10 10 A verage bocuer I.418 Pous 10.5 410 10 4-7 4 A 39 73 710 410 4 1 An f7 4 d