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Physics, 04.12.2019 07:31 InvictusPain4777

Electromagnetic and mechanical waves both transfer energy. how is an electromagnetic wave different from a mechanical wave?

question 4 options:

a. an electromagnetic wave has frequency, and a mechanical wave does not.

b. an electromagnetic wave is made of atoms, and a mechanical wave is not.

c. an electromagnetic wave can travel in a vacuum, and a mechanical wave cannot.

d. electromagnetic waves have frequencies that never change, and mechanical wave frequencies change.

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