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11 Dec 2019
When a sound wave moves past a point in air, what happens to the density of air at this
point?
A. There is no air after the sound wave passes.
B. There is no change in the density of air.
C. The air is compressed after the sound wave passes.
D. The density of air increases and then decreases as the sound wave passes.
When a sound wave moves past a point in air, what happens to the density of air at this
point?
A. There is no air after the sound wave passes.
B. There is no change in the density of air.
C. The air is compressed after the sound wave passes.
D. The density of air increases and then decreases as the sound wave passes.
Rochelle EnreraLv10
13 Apr 2021
