A250 lbm spherical buoy with a 2 ft diameter is tethered to the bed of a lake by a cable. 1 ft of the buoy is submerged in the water. a) sketch the problem and show the forces (i. e. free body diagram) b) what is the tensile force on the cable due to the buoy? c) what did you assume about the density of the buoy?

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.