Are small ripples sent out across the surface of a lake truly "waves", as that word is used in physics?
A) Yes, because the water itself doesn't go anyplace but simply oscillates up and down.
B) No, because true water waves are longitudinal.
C) Yes, because the water itself moves across the lake, away from the source of the wave.
D) No, because the water's motion is "mass motion", similar to the motion of a ball that has been thrown.
E) No, because the water itself doesn't go anyplace but simply oscillates up and down in one place.
A
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