A35 ft^3 rigid tank has propane at 25 psia, 540 r (80 f) and is connected by a valve to another tank of 20 ft^3 with propane at 40 psia, and 700 r (240 f). the valve is opened and the two tanks come to a uniform state at 580 r (120 f). what is the final pressure?

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.