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A cooler in an air conditioner brings 0.5 kg/s air at 35oC to 5oC, both at 101 kPa and it then mix the output with a flow of 0.25 kg/s air at 20oC, 101 kPa sending the combined flow into a duct. Find the total heat transfer in the cooler and the temperature in the duct flow.
a tank is rigid and contains r134a at 800 kpa and saturated conditions with quality equal to .75. from this condition a
calculate the incidence it of the tailplane for trim if the elevator deflection e is zero. ii calculate the neutral
the density and associated percent crysallinity for two nylon 66 materials are shown as follows compute the desities of
a tank truck carries a cargo of liquid which fills 23 of the tank figure 3. the tank is open tonbspthe atmosphere. if
on a given day a barometer at the base of the washington monument reads 29.97 in. of mercury. what would the barometer
A helium balloon lifts a basket and cargo of total weight 2000 N under standard conditions, in which the density of air is 1.29 kg/m3 and the density of helium is 0.178 kg/m3. What is the minimum volume of the balloon?
a 3-ft-diameter duct is used to carry ventilating air into a vehicular tunnel at a rate of 9000 ft3min. tests show that
As shown, a member is fixed at the origin, point O, and has an applied force F, the tension in the rope, applied at the free end, point B. The force is given by F=130 N i 135 N j+70 N k. The dimensions are x1 = 1.35 m, y1 = 1.90 m, and z1 = 1.15 m. W..
for the stress element with sigmax 1400psi sigmay 600psi and shear 950 psi determine the average stress the maximum
it is known that the velocity distribution for steady laminar flow in circular tubes either horizontal or vertical is
An electric motor converts electricity to rotating shaft work with an efficiency of 54%. The rotating shaft turns the impeller in the pump which, in turn, increases the pressure of the water (i=1000kg/m3) by 200 kPa. If the motor is consuming 3.5 kW ..
the power output of a steam turbine is 30 mw. determine the rate of steam flow in the turbine for saturated steam
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