Answer to Question #299312 in Physics for Cherries

Question #299312

1.The intensity of sound is found to be 7.3×10-5 Wm-2 at3.5m.Find the soind intensity if the observer is:

a. 2m

b. 5m

c. 10m


2.Solve for the power in problem number 1 (a,b,c)


1
Expert's answer
2022-02-20T15:45:49-0500
I=I0r2r02I=I_0\frac{r^2}{r_0^2}

(a)

I=7.3×105Wm2223.52=2.4105  Wm2I=7.3×10^{-5}\:\rm Wm^{-2}*\frac{2^2}{3.5^2}=2.4*10^{-5}\: \:\rm Wm^{-2}

(b)

I=7.3×105Wm2523.52=1.5104  Wm2I=7.3×10^{-5}\:\rm Wm^{-2}*\frac{5^2}{3.5^2}=1.5*10^{-4}\: \:\rm Wm^{-2}

(c)

I=7.3×105Wm21023.52=6.0104  Wm2I=7.3×10^{-5}\:\rm Wm^{-2}*\frac{10^2}{3.5^2}=6.0*10^{-4}\: \:\rm Wm^{-2}


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment