What is the pressure drop (in \( \mathrm{mm} \mathrm{Hg} \) ) in the blood as it passes through ...

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What is the pressure drop (in \( \mathrm{mm} \mathrm{Hg} \) ) in the blood as it passes through a capillary \( 1 \mathrm{~mm} \) long and \( 2 \mu \mathrm{m} \) in radius if the speed of the blood through the centre of the capillary is \( 0.66 \mathrm{~mm} / \mathrm{s} \) ? (The viscosity of whole blood is \( 4 \times 10^{-3} \mathrm{Pl} \) ).
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