Question

A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss...

A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 39.0 m apart and the total power of the sound coming from each speaker is 0.664 W. Find the total sound intensity the man hears when (a) he is at his initial position halfway between the speakers, and (b) after he has walked 3.0 m directly towards one of the speakers.

Homework Answers

Answer #1

A) I= I1 + I2
=
we know that r1=r2=19.5m=r
I= 2P/4(pie)(r)2
=2(0.66W)/4(3.14)(19.5m)2
=2.76×10-4 W/m2


B)
r1=19.5 -3=16.5m
r2=19.5 + 3=22.5m

I= I1 + I2

=(0.66W)/(4pie)(16.5m)2 +(0.66W)/(4pie)(22.5m)2

=2.97×10-4 W/m2

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions