a ventuir meter is a device for $,$easuring the speed of a fluid within a pipe. the drawing shoes a gas flowing at speed v$2$ through a horizontal section if pipe whose cross sectional area A$2=0\mathrm{.}0766$ m$2.$ the gas has a density of p$=1\mathrm{.}30$kg$/$m$3.$ the venturi meter has a cross sectional area of A$1=0\mathrm{.}0256$ m$2$ and has been substituted for a section of the larger pipe. the pressure difference between the two sections is $\_2-$P$1=153$ Pa$.$ Find $($a$)$ the speed v$2$ of the gas in the larger origional pipe and $($b$)$ the volume flow rate Q of the gas.