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A vapor compression refrigetarion cycle has a theoretical COP of 4.8 and provides 120000 btu/h of cooling. The compressor is driven by a motor with an efficiency of 92%. Estimate the theoretical kW electrical demand that this motor will draw when the refrigeration cycle is running at full capacity.
one mole of an ideal gas at t 25 degc is held in a cylinder by a piston at a pressure of 1 x 107 n m-2. the piston
temperature in state college pa on 31st december 2012 was 22 f. if the barometric pressure was 100 kpa and the humidity
100 lb of fluid food is heated by addition of 10000 btu of energy. if the food has initial temperature of 40degf and
consider an iron-carbon alloy that contains 0.2 wt c in which all the carbon atoms reside in tetrahedral interstitial
which of the following butt-weld preparations is usually the most susceptible to lack of sidewall fusion during the
determining initial acceleration of a projectilehow can i proceed to solve the problem below?the problema projectile
a heat pump uses r-134a as the working fluid and operates on an ideal vapor-compression cycle. the condenser pressure
If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the turn when traveling at 85 km/h?
q1. 1.5 kg of oxygen n2 and 0.15 kg of helium he2 are separated by a partition in a vessel.nbsp the nitrogen is at 5
the system is released from rest with the cable taut. neglect the small mass and friction of the pulley and calculate
find the cartesian components of force p acting in the x y and z directions given p20n alpha 134.5 deg beta 55.0 deg
a tube with elastic modulus of 75 gpa is used to support a compressive load. it is required that this tube must not
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