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As part of a heat treatment process, cylindrical, 304 stainless steel rods of 125-mm diameter are cooled from an initial temperature of 500C by suspending them in an oil bath at 30C. If a convection coefficient of 400 W/m^2K is maintained by circulation of the oil, how long does it take for the centerline of a rod to reach a temperature of 50C, at which point it is withdrawn from the bath? If 10 rods of length L =1m are processed per hour, what is the nominal rate at which energy must be extracted from the bath (the cooling load)?
nutrients dissolved in water are carried to upper parts of plants by tiny tubes partly because of the capillary
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a rocket is fired from rest at x0 and travels along a parabolic trajectory described by y2120103xm. if the x component
electronic components mouted on a flat plate are cooled by convection to the surroundings and by liquied water
a hardening spring applies a non constant force f .12x 10x2 lb to block a. a 4.8 lb b 23 lb and b is 18 inches
bc company wishes to enter a new market arena on the basis of its strength in core technologies and financial staying
successive maximum displacements of a spring-mass-dashpot system shown by fig. 19.10 of vector mechanics for engineers
a power plant produces a flue gas with a mass flow rate of 2 million pounds per hour. of that 150000 lbhr is water
design a container using differentiation that has a volume of 2500 litres. it must use the minimum amount of material.
The desire is to raise the temperature of the ambient air from 60 degree F to 350 degrees F ---- I need to calculate the amount of steam energy in BTU's per minutes and lbs of steam per minute necessary to accomplish the increase in air temperatur..
saturated vapor steam at 4 mpa is contained in a 2 m3 insulated vessel. a valve on the top of the tank is opened
molesec of n2 is pressurized from 300 k and 10 bar to 100 bar. assume adiabatic. calculate the minimum power for this
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