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An air compressor is powered by a 2hp motor (assume this is all input to the compressor). The inlet pressure and temperature is 100 kPa and 25C respectively. For every kg of air that passes through the compressor, 300 kJ of heat transfer takes place to the outside world. If the exit pressure is 200 kPa, and the inlet volumetric flow rate is 100 L/min, then what is the exit temperature? You may assume ideal gas behavior, and neglect changes in kinetic and potential energy.
the yield stresses of several samples of a steel containing 0.12 carbon with different grain sizes were measured. the
consider a heat pump that operates on the ideal vapor compression refrigeration cycle with r-134a as the working fluid
a wind turbine with a 90m-diameter rotor is rotating at 30 rpm under steady winds at an average velocity of 25 kmh.
a first class lever in static equilibrium has a 50lb resistance force and a 15lb effort force. the levers effort force is located 4ft from the fulcrum. what is the actual mechanical advantage of the system?
an open feedwater heater operates steadily with 30 kghr of liquid water entering one inlet at 40 degcnbspand 700 kpa.
a simply supported beam of length 18 ft. is subjected to a trapezoidally distributed load that has a value of 3 kipft
Compute the percentage ionic character of the interatomic bond for each of the following compounds: MgO, GaP, CsF, CdS, and FeO
an air standard brayton closed cycle receives air at 1 atm and 298 k. the upper temperature and pressure limits are 5
the 0.5m long container shown in the figure accelerates downhill so that the liquid surface is parallel to the road. a
All calculations and assumptions must be provided together with a full explanation of all the terms
a heat pump heats a house in the winter and then reverses to cool it in the summer. the interior temperature should be
before being injected into a furnace pulverized coal is preheated by passing it through a cylindrical tube whose
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