The velocity profile in fully developed laminar flow in a circular pipe of inner radius r = 7 cm, in m/s, is given by u(r) = 4 (1 − r2r2). determine the average and maximum velocities in the pipe and the volume flow rate. (round the final answers of the velocities to two decimal places and the final answer of the volume flow rate to five decimal places.)

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.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?