physics
posted by johnny .
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose crosssectional area A2 = 0.0900 m2. The gas has a density of ñ = 1.50 kg/m3. The Venturi meter has a crosssectional area of A1 = 0.0600 m2 and has been substituted for a section of the larger pipe. The pressure difference between the two sections is P2  P1 = 190 Pa.
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