At steady state, air at 200 kpa, 52oc and a
massflow rate of 0.5kg/s enters an insulated duct having
differinginlet and exit cross-sectional areas. at the duct exit,
thepressure of the air is 100kpa, the velocity is 255m/s, and
thecross-sectional area is 2 x 10-3 m2.
assumingthe ideal gas model, determine
a) the temperature of the air at the exit,
inoc.
b) the velocity of the air at the inlet, in m/s
c) the inlet cross-sectional area, in m2.

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

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

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.