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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.
Diffusion Coeffiecient, Calculate Constant, The diffusion coeffiecient for Cr^+3 in Cr2O3 is 6x10^-15 cm2/s at 727 degrees Celcius and is 1x10^-9 cm2/s at 1400 degrees Celcius.
steam flows steadily through an adiabatic turbine. the inlet conditions of the steam are 10 mpa 450 c and 80 ms and the
consider an accelerometer with a natural frequency of 800 hz and a damping ratio of 0.6. determine the frequency range
Carbon dioxide enters an adiabatic compressor at 100kPa and 300K at a rate of 0.5kg/s and exits at 600kPa and 450K. Considering constant specific heat, determine (a) isentropic efficiency of the compressor (b) the rate of entropy change in (kW/K) ..
Air enters a 0.6 m diameter fan at 16 deg C, 101 kPa, and is discharged at 18 deg C, 105 kPa, with a volumetric flow rate of 0.35 m^3/s.
a beer distributor incurs a penalty cost of 2 per case of shortage and a 1 charge per case left over in inventory at
calculate the partial pressure and gas-phase concentration in ppm of ethanol in air when air at 18 psi is bubbled
a gasoline delivery truck traveling at 80 kmhr decelerates at a constant rate to a complete stop 10 seconds. the
a force p acts on a block having a mass of m with the block resting on a rough incline. the coecients of static and
Acceleration was uniform. If it assumed that the acceleration was uniform where the magnitute of the volocity of an airplane was changed from 120mph to 360mph in 6 seconds.
A high-speed boat is powered by a water jet pump engine, similar to a jet engine on airplanes. The engine takes in water at the bow through a tube with diameter 1 ft, and the water is pumped out the stern of the boat through a 3-in diameter tube. The..
two 10 inch gears are to be mounted 12 inches apart and have a velocity ratio of 51. find the pitch diameters and the
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