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?

(In reply to re: solution (maybe) by Alexis)

Yes, I see now where my mistake was in the equation for the volume of the sphere at height H, it should be

V(h)=Pi*(3*r-h)*h/3  where r is radius of the sphere  don't have time now to figure how that changes all the other calculations, but I doubt it would lead to a correct answer anyway considering the posts that have been made thus far.  I'm more of a mathematician than a physicist

Posted by Daniel on 2006-07-14 06:03:37