Oxygen enters an insulated 14.2-cm-diameter pipe with a velocity of 60 m/s. at the pipe entrance, the oxygen is at 240 kpa and 20°c; and, at the exit, it is at 200 kpa and 18°c calculate the rate at which entropy is generated in the pipe.

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

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.