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A vapor compression refrigeration cycle has a theoretical COP of 4.8 and provides 120,000 btu/h of cooling (same as 10 tons 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.
Determine the minimum coefficient of static friction between the crate and the truck so that the crate does not slide relative to the truck.
Consider a model of a bone with a cemented prosthesis, where the outside radius of the bone is ro, the radius of the medullary cavity is rm, and the radius of the prosthesis is rp.
as a soil and water management expert you have been contracted to develop an irrgation systemnbspand regime for a large
refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 35 degrees c at a rate of 0.018 kgs and
consider an ideal vapor-compression refrigeration cycle. the refrigerator employs refrigerant 134a as the working fluid
an insulated piston-cylinder device initially contains 0.3 m3 of carbon dioxide at 200 kpa and 27 ordmc. an electric
a bicyclist starts from rest after traveling along a straight ath a distance of 20m reaches a speed of 30kmh. find his
a fan is used to accelerate quiescent air to a velocity to 12ms at a rate of 3m3min. if the density of air is 1.15kgm3.
At approximately what temperature (in Kelvin) would a specimen of an alloy have to be carburized for 1.8 h to produce the same diffusion result as at 930°C for 14 h? Assume that values for D0 and Qd are 2.8 × 10-4 m2/s and 137 kJ/mol, respectively.At..
a particular system obeys the relation uau-2expsr n moles of this substance initially at temperature to and pressure po
limestone blocks approximately 8 in. wide by 14 in. long by 6 in. high are sometimes used in constructing dry stacked
a tile-iron consists of a massive plate maintained at 150degc by an embedded electrical heater.nbspthe iron is placed
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