Aventuri 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 cross-sectional area a2 = 0.0800 m2. the gas has a density of rho = 1.20 kg/m3. the venturi meter has a cross-sectional area of a1 = 0.0300 m2 and has been substituted for a section of the larger pipe. the pressure difference between the two sections is p2 - p1 = 140 pa. find the speed v2 of the gas in the larger original pipe. find the volume flow rate q of the gas.