Density of gauge fluid used in well manometer is rho =13600 ±13.6 kg/m3. the maximum height of gauge fluid in the reading scale is h=0.4 m., and uncertainty in reading scale is ± 0.1 mm. compute the absolute uncertainty and accuracy of this well manometer? use g = 10 m/s2 , and one digit after decimal point for results only!

At steady state, air enters an insulated duct of varying cross-sectional area (similar to a nozzle or diffuser) at 200 kpa, 52°c with a mass flow rate of 0.5 kg/s. at the duct exit, the pressure of the air is 100 kpa, the velocity is 255 m/s, and the cross-sectional area is 2 x 10-3 m^2. assuming an ideal gas model, determine: a)-find the specific volume of the air at the exit, in m3/kg. b)- the temperature of the air at the exit, in k. c)-the velocity of the air at the inlet, in m/s. d)-the inlet cross-sectional area, in m^2.