Aire entra a una tobera a 500 kPa y 100 ◦C con una velocidad de 30 m/s. La presion y temperatura tienen una disminucion de 200 kPa y 50 ◦C respectivamente.
Encuentre la eficiencia isentropica de la turbina y la velocidad de salida del aire.

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.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

The higher the astm grain size number, the finer the gran is. a)-true b)-false