Physics

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Consider an artery with diameter 10 mm which runs horizontally. Somewhere along the artery there is a 3 cm long constriction which reduces the diameter to 5.40 mm. Assume that before and after the constriction the blood flows at a rate of 0.310 m/s, and that the blood pressure before and after is 880 mmHg. Blood density is 1060 kg/m^3.The speed of blood flow within the constriction is 1.06 m/s.
a. What is the blood pressure within the constriction? (in mmHg)

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