what is the intensity of sound 2 ? please help!!! due monday @ 4?

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what is the intensity of sound 2 ? please help!!! due monday @ 4?

sound 1 has an intensity of 38.0 W/m^2. sound 2 has an intensity level that is 2.5 dB greater than the intensity level of sound 1. what is the intensity of sound 2?

please help i dont get it :( . thanks!! any help would be great!!!! i think the answer is supposed to be 67.6 W/m^2 but how do u work it out? please show work thanks!

2007-07-08 17:21:57 · 2 answers · asked by spaceranger2010 2 in Science & Mathematics ➔ Physics

2 answers

10log(X/38) = 2.5
log(X/38) = 0.25
X/38 = 10^1.25 = 17.78279
X = 38*1.778279
X = 67.5746 W/m^2 ≈ 67.6 W/m^2

2007-07-08 17:42:14 · answer #1 · answered by Helmut 7 · 1⤊ 0⤋

no no, the answer is 65.5 W/m^2.

2007-07-09 00:28:58 · answer #2 · answered by flicksick 1 · 0⤊ 2⤋