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A cylinder of radius r0, length L, and thermal conductivity k is immersed in a fluid of convection coefficient h and unknown temperature T∞. At a ceratin instant the temperature distribution in the cylinder is T(r)= a+br2, where a and b are constants. Obtain expressions for the heat transfer rate at ro and the fluid temperature.
a u manometer reads 20 cm air as operating fluid and a given manometric fluid. a single branch closed tube reads 35 cm
a highway curve with a radius of 1200 ft is designed in such a way that the maximum safe speed for a car on this curve
coming out of a factory chimney are the following gases co2 so2 o2 n2 h2o with volume percentage to be 13.5 0.3 5.2 76
a solar hot water heater raises the temperature of 200 liters of water from 27 to 47 degrees c. suppose a heat engine
Finding the volume of hydrogen, A hydrogen filled balloon of the type used in cosmic ray studies is to be expanded to its full size which is a 100-ft diameter sphere, without stress in the wall at an altitude of 150,000 ft.
whole blood is placed in a concentric cylindern viscometer. the gap width is 1 mm and the inner cylinder radius is 30
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discuss whether the following situations should be modeled as closed systems or open systems. clearly define the
an automobile having a mass of 2 mg travels up a 7 degree slope at a constant speed of v100 kmh. if mechanical friction
an fcc iron-carbon alloy initially containing 0.20 wt c is carburized at an elevated temperature and in an atmosphere
a heat pump is to be used to heat a building during the winter. the building is to be maintained at 22.9oc at all
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