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Which statement is true of a mechanical wave? a It must have a medium.

b It can travel in a vacuum.

c It must travel in empty space.

d Both sound and light are examples.

Respuesta :

Answer:

The answer is A. It must have a medium

Explanation:

With out a medium the wave will not travel at all.

-Hope This Helps!

-Justin:)
the answer is A

it needs a medium to travel
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