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A pitot-static tube is used to measure the center velocity of air flowing horizontally through a circular duct. A manometer atlached to the duct shows

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A pitot-static tube is used to measure the center velocity of air flowing horizontally through a circular duct. A manometer atlached to the duct shows a difference in the head of 10cm of water. If the density of air and water is 1kg/m3 and 1000kg/m3 respectively, determine the center velocity (m/5) of air in the duct. (assume flow is incompressible). [4 marks]

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