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A long roll of 2-m-wide and 0.5-cm-thick 1-Mn manganese steel plate (r = 7854 kg/m3 and cp = 0.434 kJ/kg ?c °C) coming off a furnace at 820°C is to be quenched in an oil bath at 45°C to a temperature of 51.1°C. If the metal sheet is moving at a steady velocity of 10 m/min, determine the required rate of heat removal from the oil to keep its temperature constant at 45°C.
air with a mass flow rate of 10 lbms enters a poorly insulated nozzle operating at steady state with a temperature of
assume you are given a spherical joint where the ball has a radius of 20 mm and socket has a radius of 22 mm. if the
saturated water vapor at 200 kpa is in a constant pressure pistoncylind assembly. at this state the piston is 0.1m from
A paper clip is made of wire 0.7 mm in diameter. If the original material from which the wire is made is a rod 25 mm in diameter, calculate the longitudinal engineering strain and true strain that the wire has undergone during processing.
distance per tank of gas a car with a 20-gallon gas tank averages 21.5 miles per gallon when driven in own and 26.8
wind drag can be approximated as being quadratic in speedfd av2where a is a scaling constant and v is the relative
12 lbm of carbon c reacts with 24 lbm of oxygen o2 to form 22 lbm of carbon dioxide co2 plus an unknown amount of
a cast- iron cylinder of 300mm bore carries a pressure of 30 newtons per square millimitrewhat should be its thickness
it is found that ozone reaction in water nearly follows first-order kinetics in ozone concentration decreases by 50 in
An ogee spillway of a gravity dam is to be modeled using water. The spillway section is 40 feet high, its crest length is 60 feet and the maximum discharge is 3,000 CFS when the head on the crest of the spillway is 5 feet. Using a model scale of 1:..
A room has 1000 ft2 of surface, of which 120 ft2 is to be heated, and the balance has an average surface temperature of 60°F. The air temperature in the room is 68°F. The room is occupied by light clothed adults at rest. Determine the surface tempera..
The force of gravity on an imaginary Earth-mass planet - When the two balls are separated horizontally by 5.0 cm, the string hangs
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