Asked by Jacksonb

when u pierce a hole in a bottle filled with water, but the cap is on, why doesnt the water spill out through the hole?
Answered by drwls
After some of the water leaks through, a partial vacauum is created above the surface of water in the bottle. Then you have more atmospheric pressure pressing on the water from below than you have on top, and the pressure difference prevents more water from coming through the hole.
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