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Air enters a pipe at 25 Celsius, 100 kPa at a flow rate of 36 m3/hr. A heater on the outside of the pipe draws 8 amps at a voltage of 120 V. All the heat from the heater is transferred to the air (well insulated and wall t is small). Assuming that the air behaves as an ideal gas and ignoring KE and PE, (a) determine the mass flow rate of the air in kg/s and (b) the temperature of the air at the exit.
a curved nozzle assembly that discharges to the atmosphere is shown. The nozzle mass is 4.5 kg and its internal volume is 0.002 m^3. The fluid is water. determine the reaction force exerted by the nozzle on the coupling to the inlet pipe.
a supersonic aircraft consumes 5320 imperial gallons of kerosene per hour of flight and flies an average of 14 hours
a projectile is launched with a speed v0 27.0 ms from the floor of a 4.3-m-high tunnel as shown. determine the maximum
a piston cylinder device with a set of stops on the top initially contains 3 kg of air at 200kpa and 27 degrees
Calcium Silicate has replaced asbestos as the preferred insulation for steam lines in power plants. Consider a 40 cm O.D., 4 cm wall thickness steel steam line insulated with a 12 cm thickness of calcium silicate. The insulation is protected from dam..
In a car engine gasoline (assume octane C8H18) is evaporated and then mixed with air in a ratio of 1:15 by mass. In the cylinder the mixture is at 750 kPa, 650 K when the spark fires. For that time find the partial pressure of the octane and the spec..
a 4.53 kg mass attached to the lower end of a spring whose upper end is fixed vibrates with a natural period of 0.45
a residential development is proposed in the eastern part of new territories hong kong. the development consists of 5
an engine of mass 180 kg is to be supported on four helical springs. when the engine speed is 900 rpm there is a
steam at 500 lbfin2 500 f enters a well insulated valve operating at steady state with a mass flow rate of .11 lbs
a chemically reactive system contains the following species in the gas phase nh3 no no2 o2 and h2o. determine a
water is delivered from a pressurized storage tank to a watering trough through 600 feet of 2 inch steel pipe. the pipe
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