Hydraulics and Fluid Mechanics in ME
Newton’s law of viscosity relates

intensity of pressure and rate of angular deformation
viscosity and rate of angular deformation
shear stress, viscosity and temperature
shear stress and rate of angular deformation

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Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

(2/3) Cd × L.√2g [H12 - Ha2]
(2/3) Cd × L. √2g [H13/2 - Ha3/2]
(2/3) Cd × L.√2g [H1 - Ha]
(2/3) Cd × L. √2g [H15/2 - Ha5/2]

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