In a flow of air between parallel plates spaced 0.03 m apart, the centerline velocity is 1:2m=s and that 5 mm from the pipe wall is 0:8m=s. Assuming laminar flow, determine the wall shear stress using each of the measurements. Explain whether the flow is laminar or turbulent.

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

On a average work day more than work place firs are reorted