A70 in. long steel bar (e =30 x 10^6 psi) of rectangular cross-section 1.5 in. x 2 in. is pinned at each end. it is subjected to an axial compressive stress of 33 ksi. determine the buckling load. verify that the euler's equation is valid for the given length.

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.