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* ''g'' = gravitational acceleration constant (9.81 m/s<sup>2</sup>)
* ''g'' = gravitational acceleration constant (9.81 m/s<sup>2</sup>)
* ''d'' = diameter of the solid (spherical) (µm)
* ''d'' = diameter of the solid (spherical) (µm)
−
* ''v'' = kinematic viscosity of water (1 mm<sup>2</sup>/s)}}
+
* ''v'' = kinematic viscosity of water (1 mm<sup>2</sup>/s)
* ''R'' = Specific gravity for solid in question (i.e. 1.58kg/cm<sup>3</sup> for sand)
* ''R'' = Specific gravity for solid in question (i.e. 1.58kg/cm<sup>3</sup> for sand)
* ''C'' = Typical constant for spherical solids (0.4) and (1.0) for sand grains}}
* ''C'' = Typical constant for spherical solids (0.4) and (1.0) for sand grains}}