Determine the force of attraction in a parallel-plate capacitor with a = 5 cm2 , d = 2 cm, and r = 4 if the voltage across it is 50 v.

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero

Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?