I'm having trouble a problem and I was hoping someone could show me some direction.(adsbygoogle = window.adsbygoogle || []).push({});

Q:

A weir is used to measure flow rates in open channels. For a rectangular weir the expression can be written as Q=288.8 LH^(3/2).

Where Q= discharge rate, in gal/h

L= Length of weir opening parallel to liquid, in inches

H= height of fluid above crest, in inches

As the channels become larger, the weir opening can be expressed as follows:

Q in cubic feet per second, with L and H in feet.

Determine the new constant.

The answer is5.35, and I can't figure out how they derived it. I think it has to do with converting units, but I don't know.

Any help is appreciated.

Thanks,

Frustra8ed

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# Homework Help: Determining the new constant

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