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ale4655 [162]
3 years ago
15

Why an electromagnetic wave can travel through empy space that contains no matter?

English
1 answer:
Vikki [24]3 years ago
6 0
The electromagnetic wave is self propagating, what I mean by that is, an electric field generates a magnetic field at 90 degree phase angle, and the magnetic wave you get as a result generates the electric wave at the same phase angle. The interchange of electric to magnetic and vice versa continues and lets the electromagnetic waves to travel without any medium. Quite interesting, really!
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How might you rewrite sentences 3 and 4 as one sentence containing an appositive<br> phrase?
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Answer:

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Explanation:

I have been able to rewrite sentences 3 and 4 as one sentence containing an appositive phrase.

An appositive phrase refers to a noun or a noun phrase that actually renames the noun next to it. The appositive phrase goes ahead to explain and give more meaning to the noun next to it.

In the above sentence, "<em>a competition that happens once a year</em>" is the appositive phrase that explains or renames "<em>The state music contest</em>".

The purpose it actually serves is to give more information about the noun.

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Hope this helps :)
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