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categoryهندسة طبية وبيومكترونيك schoolبكالوريوس event_available2026-07-14

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Question 4: Bernoulli Equation [15 marks total] Blood flow from the left ventricle into the aorta can be modeled as a reducing nozzle (see schematic below). Model both the left ventricle and the aorta as a circular tube with diameter of Di-3.1 cm and D-2.7 cm, respectively. The pressure in the left ventricle is 130 mmHg (P1). Blood is ejected from the left ventricle (VI) at a speed of 120 cm/s and into the aorta (V2) at a speed of 158 cm/s. The pressure in the aorta is 123 mmHg (P2). Calculate the difference in height, h-Az, between these two locations (left ventricle & aorta). Give your answer in cm. Notes: density of blood is 1050kg/m³ and Conversion Factor: 1 mmHg=133.32 Pa. V₂ Aorta, Location 2 V₂ = 158 cm/s P2-123 mmHg h=Az Left Ventricle, Location 1 V₁ = 120 cm/s P=130 mmHg

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