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4 votes
4 votes
What is a longitudinal wave?

The matter through which a mechanical wave travels
The particles of a medium that travel parallel to a wave
The particles of a medium that travel perpendicular to a wave
Two lines that meet at a right angle

User Charles Salvia
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1 Answer

10 votes
10 votes

Answer:

b

Step-by-step explanation:

Source is parallel to the propagation.

User Gabriel Diez
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