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.)

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

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.