How Is Sound Intensity Calculated at a Distance?

[tasha_michelle]

sound wave of a source??

Homework Statement

A sound wave radiates from a source to all directions, if the power of the sound is 200 watts then the intensity of the sound wave 100m from the source is what?

Homework Equations

is this question complete / incomplet? is it missing any information that I need to solve the problem. what equation do i use?

The Attempt at a Solution

i tried B (200)log of 10 =(100m)log I/Io ?

 

[malawi_glenn]

Imagine a sphere of radius 100m, how big is its area? How is power related to intensity?

 

[m2003]

I would first clarify the question by asking for more information. It appears that the question is asking for the intensity of the sound wave at a distance of 100m from the source, given that the power of the sound is 200 watts. However, there are several variables missing that are necessary to solve this problem, such as the frequency of the sound wave and the characteristics of the medium through which the sound is traveling. Without this information, it is not possible to accurately determine the intensity of the sound wave at a specific distance from the source.

In terms of equations, the intensity of a sound wave is typically calculated using the equation I = P/A, where I is the intensity in watts per square meter, P is the power in watts, and A is the surface area through which the sound wave is passing. However, without knowing the frequency and medium, it is not possible to determine the surface area or the intensity.

In summary, the question as it is currently written is incomplete and missing key information. I would ask for more details in order to accurately solve the problem.