Chemistry, 14.02.2020 09:00 tryintopassenioryear
PLEASE ANSWER
Which of the following statements about electromagnetic and mechanical waves is true?
A. Electromagnetic waves must travel through a medium, but mechanical waves do not require a medium.
B. Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium.
C. Mechanical waves sometimes travel through a vacuum, and electromagnetic waves sometimes travel through matter.
D. Electromagnetic waves travel mostly through matter, and mechanical waves travel mostly through a vacuum.
Answers: 2
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PLEASE ANSWER
Which of the following statements about electromagnetic and mechanical wav...
Which of the following statements about electromagnetic and mechanical wav...
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