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September 18, 2014

September 18, 2014

Posted by **steve** on Tuesday, July 20, 2010 at 9:07pm.

- physics -
**drwls**, Tuesday, July 20, 2010 at 11:38pmAccording to what is called the continuity equation, the product of

(density)(cross sectional area)(velocity)

is a constant in steady-state flow.

For a liquid such as water, you can assume that the density is constant.

Therefore A*V = constant

Since Area is proprtional to diameter ^2,

D^2*V = constant

Now do the numbers.

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