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Alex17521 [72]
1 year ago
5

The power output of a certain public-address speaker is 6.00W . Suppose it broadcasts equally in all directions.(b) At what dist

ance from the speaker would the sound be barely audible?
Physics
1 answer:
Tems11 [23]1 year ago
6 0

The distance from the speaker would the sound be barely audible is 477.46km.

<h3>What is distance?</h3>

It's how far away two objects or locations are measured numerically as distance. Distance in physics or common language can refer to a physical length or an assumption based on other factors (e.g. "two counties over"). Sometimes the symbol |AB| is used to indicate how far apart two points are. "Distance from A to B" and "Distance from B to A" are typically equivalent terms. A distance function or metric in mathematics is an extension of the idea of physical distance; it defines what it means for components in a space to be "near to" or "far away" from one another. Distance is a non-numerical unit of measurement in the social sciences and psychology.

Explanation:

Sound audible(barely) = 0dB

I= 10.709*I/10^{-10}=0

I= 10^{-12}*10^{0}=10^{-12}w/m^{2}

distance(r)=\sqrt[]{\frac{P}{4\pi I} } =\sqrt[]{\frac{6}{4\pi * 10^{-12} } } =477.46 km

To learn more about distance ,visit:

brainly.com/question/15172156

#SPJ4

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