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Air enters a pipe at 25 0C, 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 steady flow compressor is used to compress helium from 100 kpa and 20 degrees celcius at the inlet to 1400 kpa and
helium gas expands in an adiabatic turbine from 2 mpa and 750degc to 0.18 mpa at a rate of 1.5 kgs. assuming constant
a centrifugal pump located above an open water tank is used to draw water using a suction pipe 8 cm diameter. the pump
a cylindrical duct supplies 1.20 kgs of combustion air at 150 c and 95.0 kpa to a furnace. if the velocity of the air
a pump raises the pressure of water from 100 kpa to 900 kpa and raises the velocity from 1 ms to 20 ms. the flow rate
an electrical window air conditioner with a cooling capacity of of 8000 kjhr draws 6.00 amps of electrical current at
a certain ceramic has a fracture toughness of kic of 5 mnm32. a batch of samples of this material contains surface
a simple steam power system has a turbine inlet state of 6.0 mpa and 540 0c and an exhaust pressure 0.008 mpa. the
A small hydroelectric power plant produces electrical power at a rate of 30 kW. The plant utilizes a stream of water that drops 40 m from a lake to the turbine and flows at a rate of 100 kg/s. What is the efficiency of the turbine-generator?
a four-stroke-cycle engine operates on the air-standard diesel cycle. the engine has six cylinders with a 0.105 m bore
what would happen if you place a 1m by 2 m sheet of aluminum extruded and place it on the roof of your car driving at
determine the expressions for attractive and repulsive energies, EA and ER as a functions of r where r is in nm and E is in eV.
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