Question
a.
v = \(\frac{hγ_w}{4ηL}(r^2-R^2)\)
b.
v = \(\frac{hγ_w}{14ηL}(R^2-r^2)\)
c.
v = \(\frac{hγ_w}{4ηL}(R^2-r^2)\)
d.
v = \(\frac{hγ_w}{8ηL}(R^2-r^2)\)
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