Good afternoon everybody...
Water flows in a 420mm diameter horizontal pipe to a depth of 380mm.
Calculate :
A: the wetted perimeter of the pipe.
B:The area of cross section of water.
C:The width of the water at the surface.

Any input on this badboy will be greatly appreciated.

Question

Good afternoon everybody...
Water flows in a 420mm diameter horizontal pipe to a depth of 380mm.
Calculate :
A: the wetted perimeter of the pipe.
B:The area of cross section of water.
C:The width of the water at the surface.

Any input on this badboy will be greatly appreciated.

austinl · Answer

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austinl · Answer

And we are to assume the water is perfectly still, perfectly horizontal, right?

austinl · Answer

This is a tough problem.

anonymous · Answer

yep.the pipe is horizontal.

anonymous · Answer

im as far as you at the mo.Except ive done it to scale on graph paper.

austinl · Answer

I'm just going to brainstorm here a little.
$$C=\pi d$$

austinl · Answer

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As best as I can figure, we need to figure out what theta is, because that is the only way that I can find to find the circumference of part of a circle.