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Brass balls, each of mass 0.258 kg, and initially at 130°C, are quenched in a water bath at 50°C for 2 minutes at a rate of 120 balls per minute. After quenching, the temperature of the balls drops to 76°C. If the specific heat of brass (C) is 0.385 kJ/kg.K, determine the rate at which heat needs to be removed from the water in order to keep its temperature constant at 50°C.
a piston cylinder device contains 0.5 kg of water at 1.0mpa and 400oc. now it is cooled to 1mpa in sat-v phase.
a spherical cryosurgical probe may be imbedded in diseased tissue for the purpose of freezing and thereby destroying
a space is at a temperature of 75 f 24 c and the relative humidity is 45 percent. find a the partial pressures of the
An 8-kg plunger is released from rest in the position shown and is stopped by two nested springs; the constant of the outer spring is k1 = 4 kN/m and the constant of the inner spring is k2 = 12 kN/m. If the plunger is released from the height
An air compressor takes air from outdoors at 28deg C and 101.2kPa and compresses it to 790kPa and 50 deg C. The air input to the compressor is found to be 22.67m3/hr. Estimate the required Hp to operate the compressor.
a thermopane window consists of two pieces of glass k 0.78 wmk 7 mm thick that enclose an air space k 0.026 wmk 7 mm
Read the titled books Drilling Fluid Engineering Manual. Textbook prepared by M-I Drilling Fluids Co.,1998; Halliburton Cementing Tables. Casing and cement data tables prepared by Halliburton Company.
why is the correct tightening of friction grip bolts important?
water flows 2m deep at 2ms in a rectangular channel. find the change in depth and in water surface elevation caused by
two kg of saturated liquid water at 1 bar is compressed to 25 bar and 100degc in a water pump. determine the change in
a 1-m3 rigid tank initially contains air at 150 kpa 300 k. the tank is connected through a valve to a supply line at
What is the work you get out of each kJ of heat extracted from the basin? Repeat for the case that the water is at 100C. Comment on why efficient car engines run so hot.
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