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Air flows steadily through a one-inlet, one-exit control volume. At the inlet, which has a flow area of 28 cm2, the air is at 600 kPa, 500 K, and has velocity of 30 m/s. At the exit, the pressure is 300 kPa, the temperature is 456.5 K, and the velocity is 300 m/s. Assuming that the air behaves as an ideal gas, determine the following
a) the mass flow rate (kg/s), and
b) the exit flow area (cm2).
underground water is to be pumped by a 70 efficient 3-kw submerged pump to a pool whose free surface is 30 m above the
a projectile is launched from the ground with v0100fts at t0 theta060 degrees. determine the time t when the velocity
a short cylindrical block of 6061-t6 aluminum having an original diameter of 25 mm and a length of 125mm is placed in a
a closed well insulated tank contains 10 kg of air at 300 k. an electric motor drives a propeller inside the tank
to a man walking with a speed of 2 ms the rain appears to fall vertically. if the velocity of rain is 4 ms calculate
air at 1175k 8 bar enters a turbine operating as steady state and expands adiabatically to an exit state of 1 bar. the
For the cylinder-piston shown, piston is initially resting on the lower stops. The cylinder contains 1 kg of water at 1 bar and x = 0.64. A pressure of 3 bars is required to move the piston. The system is now heated until the water reaches 600° C.
a regenerative steam power cycle has a closed feedwater heater that heats 20 kgs of water from 100degc 20 mpa to
one kg of execute a carnot power cycle. during the isothermal expansion, the water is heated until is is a saturated vapor the pressure is and the quality is. evaluate the heat and work for each process.
Typical towns in states with big plains like Texas need an elevated tank to supply tap water. Below there is a picture of a typical elevated tank. If we approximate the tank as a cylinder with a diameter of 50 ft and a height of 25 ft, answer the fol..
assume that the charge cooler incoming cooling water is at 45 oc and its effectiveness is 80 and the air pressure loss
a soft drink bottling machine fills bottles with fluid volumes that are normally distrbuted with a mean of 250 ml and a
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