Alarge mass is supported by a piston of diameter 퐷=4푖푛.and length 퐿=4푖푛.the piston sits in a cylinder closed at the bottom, and the gap 푎=0.001푖푛.between the cylinder wall and piston is filled with sae oil at 68∘퐹. the piston slowly sinks due to the mass, and oil is forced out at a rate of 0.1 gpm. what is the mass (slugs)?

On a average work day more than work place firs are reorted

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.