At a certain location, the velocity of air flowing in a duct is 321.5 m/s. At that location, the stagnation pressure is 700 kPa and stagnation temperature is 450 K. What is the static density at this...

At a certain location, the velocity of air flowing in a duct is 321.5 m/s. At that location, the stagnation pressure is 700 kPa and stagnation temperature is 450 K. What is the static density at this location? Air flows in a circular duct of diameter 4 cm at the rate of 0.5 kg/s. The flow is adiabatic with stagnation temperature 288 K. At a certain location, the static pressure is 110 kPa. Find the velocity at this location.