How does power relate to intensity?

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    Intensity Power
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Homework Help Overview

The discussion revolves around the relationship between power and intensity, specifically in the context of a firecracker emitting peak power measured in watts. Participants are exploring how intensity relates to this power value using the decibel scale.

Discussion Character

  • Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the definition of intensity as power per unit area and question the appropriate area to use in calculations, considering the geometry of a sphere.

Discussion Status

The conversation is active, with participants attempting to clarify the relationship between power and intensity. There is an exploration of the correct area to use in the intensity calculation, indicating a productive line of inquiry.

Contextual Notes

Participants are working within the framework of the decibel scale and are considering the implications of using different geometric areas in their calculations.

beanryu
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In this problem you will use the decibel scale to analyze a small firecracker that emits 1200 W of peak power.

How does I(the intensity) relate to 1200 peak power?

THANKYOU!
 
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Intensity is power per unit area.
 
Oh, I think I figured it out, the area is the area of the sphere, not a circle!
Isn't it right?
 
The surface area you mean?
 
P/A where A is the area of a sphere! isn't it?
 

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