In an isothermal air at 40° c, an object moves at a speed of 749.4 m/s. what is the mach number of the motion?

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

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery