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A Venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing below shows a gas flowing at speed v2 through a horizontal section of pipe whose cross-sectional area is A2 = 0.07 m2. The gas has a density of 𝜌 = 1.3 kg/m3. Th Venturi meter has a cross-sectional area of A1 = 0.05 m2 and has been substituted for a section of the larger pipe. The pressure difference between two sections is P2 – P1 = 120 Pa. Find the speed v2 of the gas in the larger original pipe. Find the volume flow rate Q of the gas.