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A 100Kg pure Iron block at 27 degrees C is dropped into an insulated, rigid tank that contains 0.1m3 of unused engine oil (density of oil = 868.8 kg/m3 ) at 77 degrees C. Find the temperature, in K, when thermal equilibrium is achieved.
air is compressed from an initial temperature of 20 degc and pressure of 100 kpa to a final pressure of 1000 kpa. the
steam at a pressure of 0.08 bar and a quality of 93.2 enters a shell-and-tube heat exchanger where it condenses on the
a cold heading operation is performed to produce the head on a steel nail. the strength coefficient for this steel is
a kansas farmer heats his house with a heat pump using r134a generating a temperature of 50 deg c at the exit of the
water is to be pumped from a dam to a storage tank 20 m above at a rate of 70 ls. the electric power needed to achieve
If the maximum temperature in the cycle is not to exceed 2200 K, determine the thermal efficiency and the mean effective pressure.
a free piston-cylinder system initially contains 8 kg of saturated liquid water at 275 kpa initial state. the water in
a 1kg mass connected to a horizontal spring of stiffness 1031 nm has a dry-sliding friction force of 2 n. the mass is
A compressor operating adiabatically is to compress 2.83 m^3/min of air at 29.4C and 102.7 kN/m^2 to 311.6kN/m^2. Calculate the power required if the efficiency of the compressor is 75%. Also, calculate the outlet temperature.
does the job of managing a high-technology function e.g. an engineering design department differ from that of managing
1. a househusband is steaming beef for his family in a pan with a surface area of 23.544 cm2 that is covered with i a
determine the concentration of carbon in an iron-carbon alloy for which the microstructure consists of proeutectoid
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