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Sound Intensity Level Question

  • #1
:confused:

A loudspeaker supported well above the ground on a post is supplied with
8.5 W of electrical power. The speaker is able to convert
5.6% of that into sound power. (That number is known as
the speaker's efficiency.) If we assume that sound
radiates equally in all directions, what is the sound intensity at a
distance of 7.1 m?

Please help? :shy:
 

Answers and Replies

  • #2
Tide
Science Advisor
Homework Helper
3,076
0
What, precisely, is "intensity?" Look it up in your textbook. Understanding the definition will lead you to the answer!
 

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