Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

1.855 aH.√(2g)
1.585 a.√(2gH)
0.855 a.√(2gH)
5.85 aH.√(2g)

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Hydraulics and Fluid Mechanics in ME
Surface tension

Is also known as capillarity
Decreases with fall in temperature
Is a function of the curvature of the interface
Acts in the plane of the interface normal to any line in the surface

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