In a 45-degree bend pipe on horizontal plane a circular air duct of 3.5 m^2 cross sectional area is gradually reduced to 1.2 m^2 area. Find the pressure in N/cm^2 at 1.5 m^2 cross sectional area, if the velocity of flow at the 2.1 m^2 section is 10.0 m/s and pressure is 3.453 N/cm^2. Take density of air is 1.18 kg/m^3.

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.