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Time to run out water (Posted on 2006-07-13) Difficulty: 3 of 5
Consider a solid sphere (capable of withstanding full vacuum) of 3m diameter filled completely with water resting at sea level. It has a 10cm hole at the bottom with a cork on it. If you open the cork, what is the time taken for water to completely drain out.

What happens for higher diameter spheres?

No Solution Yet Submitted by Salil    
Rating: 1.2500 (4 votes)

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re(2): solution (maybe) | Comment 6 of 11 |
(In reply to re: solution (maybe) by Alexis)

Viscosity explains the ketchup, but surface tension will not retain the contents.  And we can assume a vortex concept so that equally volumes of air and water are exchanged, well, on average anyway?
  Posted by brianjn on 2006-07-14 04:20:27

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