Calculating Distance for Siren Sound Intensity Level

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The discussion focuses on calculating the distance from a siren producing a sound intensity level of 120 dB at 2.0 meters. The intensity (I) is determined to be 1 W/m² at that distance, leading to a power (P) calculation of approximately 50.27 watts. The main challenge is determining the appropriate values to use for calculating the distance (r) from the siren. The original poster expresses confusion due to the lack of a specific question regarding the distance calculation. Clarifying the parameters for the distance calculation is essential for solving the problem effectively.
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Homework Statement



Residents of Hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers. Suppose a siren produces a sound that has an intensity level of 120 dB at a distance of 2.0m.

Homework Equations



I = P / 4\pir^{2}

The Attempt at a Solution



I calculated I at 2m: I = 1 w/m^2
P at 2m and 1 w/m^2 = 50.26548

I just don't know what values I should use to calculate r.
 
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You did not post the actual question. :confused:
 

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