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So i need help- with science

So I Need Help With Science class=

Sagot :

Longitudinal wave: Type of mechanical wave in which energy flows parallel to the wave.

Electromagnetic waves: A wave that can travel through empty space, like light waves.

Trough: The lowest point of a transverse wave

Rarefactions: Area in a longitudinal wave in which the particles are spread out.

Medium: The material through which a mechanical wave travels.