Monday
April 21, 2014

Homework Help: physics

Posted by amy on Friday, December 14, 2012 at 11:45am.

An audio speaker at a concert emits sound uniformly in all directions at a rate
of 100 W.
(i) Calculate the sound intensity experienced by a listener at a distance
of 8 m from the speaker.
The listener moves back from the speaker to protect her hearing.
(ii) At what distance
from the speaker is the sound intensity level reduced by 3 dB?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

PHYSICS - A concert loudspeaker suspended high off the ground emits 35 W of ...
Physics - A speaker at an open-air concert emits 600 of sound power, radiated ...
math - A loud speaker at a rock concert generates 102 W/m2 at 20m with a...
Physics(Please respond) - A source emits sound uniformly in all directions. ...
physics - A stereo speaker represented by P in Figure 13-22 emits sound waves ...
Physics - A source of sound (1140Hz) emits uniformly in all directions. An ...
physics - A source of sound (1200 Hz) emits uniformly in all directions. An ...
physics - A source of sound (1200 Hz) emits uniformly in all directions. An ...
physics - A source of sound (1200 Hz) emits uniformly in all directions. An ...
physics - A source of sound (1000 Hz) emits uniformly in all directions. An ...

Search
Members