physics
posted by hannah .
If the intensity of a person’s voice is 3.6×10−7
W/m2
at a distance of 2.1 m, how much sound
power does that person generate?
Answer in units of W
Respond to this Question
Similar Questions

physics  sound level
The source of a sound wave has a power of 2.50 µW. Assume it is a point source. (a) What is the intensity 6.70 m away? 
Math
At a concert, the loudness of sound, L, in decibels, is given by the equation L=10log(I/I_o), where I is the intensity, in watts per square metre, and I_o, is the minimum intensity of sound audible to the average person, or 1.0 x 10^12 … 
Math
At a concert, the loudness of sound, L, in decibels, is given by the equation L=10log(I/I_o), where I is the intensity, in watts per square metre, and I_o, is the minimum intensity of sound audible to the average person, or 1.0 x 10^12 … 
physics FORCE
if the intensity of a mosquito's buzzing is 9.3 x 10^8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate? 
Physics
if the intensity of a mosquito's buzzing is 9.3 x 10^8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate? 
Physics
if the intensity of a mosquito's buzzing is 9.3 x 10^8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate? 
physics
A person sees clearly wearing eyeglasses that have a power of −2.92 diopters and sit 2.22 cm in front of the eyes. If the person wants to switch to contact lenses, which are placed directly on the eyes,what lens power should … 
physics
The power output of a tuba is 0.39 W. At what distance is the sound intensity of the tuba 1.4 × 10−3 W/m2? 
Physics
An experiment requires sound intensity 0.942 W/m2 at the distance of 2.7 m in any direction from a speaker. What total sound power is required? 
Physics
A person is initially 8 m from a point sound source which emits energy uniformly in all direction at a constant rate. If the intensity of the source is to be halved but the sound is to be as loud as before, what distance should the …