a. Using the result of Problem 4.4.5, determine the volume of liquid flowing
per unit time through a capillary of radius r connected to the liquid if its
surface in the capillary is established (due to evaporation) at distance h from
itsbase. Viscosityoftheliquidη,surfacetensionσ,theliquidcompletelywets
the capillary. Approve the maximal volume of blood which can be supplied to
tissues in 1 s by capillaries of radius 10 µm and length 1 mm. If the number
of capillaries is 105, viscosity 5⋅10−3N ⋅ s , surface tension 7⋅10−2 N/m.
m2
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