What is the largest average velocity of ...

What is the largest average velocity of blood flow in an artery of radius `2 times 10^-3 m` if the flow must remain laminar?(b) What is the corresponding flow rate?(take viscosity of blood to be `2.084 times 10^-3 Pa s`)

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`0.98 ms^-1`
(b) `1.24 times 10^-5 m^3 s^-1`

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