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A metal plate (k = 180 w/(m*k), p = 2800 kg/m^3, cp = 880 J/(kg*k)) with a thickness of 1 cm is being cooled by air at 5 degrees C with a convection heat transfer coefficient of 30 w/(m*k). If the initial temperature of the plate is 300 degrees C, determine the plate temperature after 2 minutes of cooling.
an air-conditioner with refrigerant -134a as the working fluid is used to keep a room at 26 celsius by rejecting the
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many bridge designs today contain simple geometrical components but are constructed into complex ways to ensure that
A fan with a diameter of 12 inches operates at a voltage of 120V with a current draw of 0.5 amps. The manufacturer claims the average velocity of air leaving the fan is 33.1 ft./s under standard conditions. Standard air has a density of 0.075 lb mass..
a spring having a center-to-center diameter of 20 mm 0.8 in. is to be constructed of cold-drawn and annealed 316
compute and plot the chemical potential surface microtp for a monoatomic ideal gas in the range 5 klttlt1000 k and 10-5
ammonia vapor flows through a valve. it enters the valve at a pressure of 8 bar and a temperature of 120c and after
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