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March 6, 2015

March 6, 2015

Posted by **Anonymous** on Wednesday, December 19, 2012 at 5:41am.

- maths -
**Steve**, Wednesday, December 19, 2012 at 11:09amto rise by 2.4m in 18 hours, the volume must increase by

120*.75*2.4 = 216 m^3/hr

the square pipe has cross-section area of .2^2 = .04 m^2

216 m^3/hr / .04m^2 = 5400 m/hr

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