A Pitot-static probe is used to measure the speed of an aircraft flying at 6000 m. If the differential pressure reading is 3600 N/m2, determine the speed of the aircraft in m/s. The density of air at an altitude of 6000 m is 0.66 kg/m3. The speed of the aircraft is m/s.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false