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sweet [91]
2 years ago
8

Describe how radio waves are different from sound waves.

Physics
2 answers:
Lilit [14]2 years ago
7 0

Answer:

sound and radio waves are completely different phenomena.

Explanation:

sammy [17]2 years ago
6 0
Radio waves are electromagnetic waves so therefore they can travel long distances in a vacuum. Sound waves are mechanical waves so they can’t not travel in the absence of a medium.
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D

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6 0
3 years ago
If a sinusoidal electromagnetic wave with intensity 18 W/m2 has an electric field of amplitude E, then a 36 W/m2 wave of the sam
Neporo4naja [7]

Answer:

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Explanation:

From the question we are told that

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Generally the an electromagnetic wave intensity is mathematically represented as

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Looking at this equation we see that

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=>  \frac{I_1}{I_2}  =  [ \frac{ E_{max}_1}{ E_{max}_2} ] ^2

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=>  E_{max}_2 = \sqrt{\frac{36}{18} }  * E        

=>  E_{max}_2 = \sqrt{2 }  E        

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3 years ago
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grandymaker [24]
<span>It bounces back toward a single spot.  This is how the focusing mirrors on headlights work</span>
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3 years ago
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