A classical mechanics problem by Thales Castro
Classical Mechanics
Level
pending
Suppose two humans, A and B, are able to survive in outer space (vacuum). Imagine A slaps himself. Is there any sound?
No, because sound waves never propagate in a vacuum.
Yes, but B would be the only one able to hear it
Yes, and both A and B would be able to hear it.
Yes, but A would be the only one able to hear it.
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1 solution
As sound waves cannot travel through vaccum, B will not hear the slap, but they can travel through A's body and eventually reach his ears.