Calculate the angular acceleration of link AB and the translational acceleration of the piston B if the crank OA is rotating at a constant angular velocity of 2500 rpm. Express the results in vector notation with respect to a typical xy coordinate system.

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.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

What is a monomer? how do they form a ploymer from the view point of chemical bonding?