pickle12345 pickle12345

04-05-2018
Physics

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Which statement is true? A) All waves travel at the same speed through any medium. B) All waves travel at the same speed if no medium is present. C) Electromagnetic waves require a medium, but mechanical waves do not. D) Mechanical waves require a medium, but electromagnetic waves do not. Eliminate

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SynchronizedDreams SynchronizedDreams

04-05-2018

D) Mechanical waves always require a medium, while electromagnetic waves do not and can thus travel through open space.

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ama59176 ama59176

09-05-2018

i just took the test and it D . have a good day

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