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1 vote
What requires a physical medium in which to travel?

2 Answers

4 votes

Mechanical waves do.

Those are the ones like sound waves, ocean waves, ripples on a pond, waves in a rope, guitar string waves, Slinky waves, etc.

User Nadiyah
by
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4 votes

Answer:

mechanical waves

Step-by-step explanation:

User Sgdva
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