Question: Distinguish between a compression and a rarefaction. In a compression, the molecules are further apart than average; in a rarefaction, they are closer together. In

Distinguish between a compression and a rarefaction. In a compression, the molecules are further apart than average; in a rarefaction, they are closer together. In a compression, the molecules are closer together than average; in a rarefaction, they are further apart. Sound in air travels faster in a rarefaction than it does in a compression. In a compression, the air is less dense; in a rarefaction, it is more dense

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