1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Total Power output Sound

  1. Mar 2, 2012 #1
    Total Power output Sound!!

    All right, nevermind, problem resumed.

    . A rock band has an average intensity level of 110 dB at a distance of 15 m from the speakers. Assuming the sound is radiated equally over a hemisphere in front of the band, what is the total power output?

    Relevant Equations
    Intensity=Power/area
    A=4pir^2

    Attempt at solution
    A=4pi(15)^2
    A=2827m^2
    2827/2 (hemisphere)

    110=p/1413
    110x1413=
    an answer that is not one of the multiple choice solutions...
     
    Last edited: Mar 2, 2012
  2. jcsd
  3. Mar 2, 2012 #2

    berkeman

    User Avatar

    Staff: Mentor

    Re: Total Power output Sound!!

    Problem resumed, or problem solved?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Total Power output Sound
  1. Power Output (Replies: 1)

  2. Power Output (Replies: 1)

  3. Power output (Replies: 2)

  4. Power output (Replies: 4)

Loading...