Industries involved in viscosity measurement [27, 29] continue to use the CGS system ofunits, since centimeters and grams yield convenient numbers for many fl uids. The absoluteviscosity ( μ ) unit is the poise, named after J. L. M. Poiseuille, a French physician who in1840 performed pioneering experiments on water fl ow in pipes; 1 poise =1 g/(cm-s). Thekinematic viscosity ( ν ) unit is the stokes, named after G. G. Stokes, a British physicist whoin 1845 helped develop the basic partial differential equations of fl uid momentum; 1 stokes =1 cm 2 /s. Water at 20 ° C has μ ~~ 0.01 poise and also ν ~~ 0.01 stokes. Express these resultsin ( a ) SI and ( b ) BG units.
Industries involved in viscosity measurement [27, 29] continue to use the CGS system of
units, since centimeters and grams yield convenient numbers for many fl uids. The absolute
viscosity ( μ ) unit is the poise, named after J. L. M. Poiseuille, a French physician who in
1840 performed pioneering experiments on water fl ow in pipes; 1 poise =1 g/(cm-s). The
kinematic viscosity ( ν ) unit is the stokes, named after G. G. Stokes, a British physicist who
in 1845 helped develop the basic partial differential equations of fl uid momentum; 1 stokes =
1 cm 2 /s. Water at 20 ° C has μ ~~ 0.01 poise and also ν ~~ 0.01 stokes. Express these results
in ( a ) SI and ( b ) BG units.
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