A solid circular shaft of 40mmdiameter is to be replaced by a hollow circular tube made of the same material. The outside diameter of the hollow tube is limited to 70mm. Find the thickness of the hollow tube if both designs are to work at the same maximum shear

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

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

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false