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The blood pressure is in a patient's vein is 2650 Pa. A needle 2.5cm long with an internal diameter of 0.76 mm is placed into the vein. A fluid with density of
1035 kg/m3 and a viscosity of 8.94 × 10–4 Pa.s is then passed into the needle from an IV drip bag. How long will a litre of the liquid take to flow into the
vein if the drip bag is 0.56m above the needle?

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