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Long cylindrical steel rods (density = 7833 kg/m3 and cp = 0.465 kJ/kg · °C) of 15-cm diameter are heat-treated by drawing them at a velocity of 5m/min through an oven maintained at 900°C. If the rods enter the oven at 30°C and leave at a mean temperature of 700°C, determine the rate of heat transfer to the rods in the oven in kW.
determine the work done by a 1-lb fluid system as it expands slowly within a piston-cylinder arrangement from an
1.consider a room 3 m x 3m x 3m with one faccedilade made of glazing with diffuse transmittance 0.6 and reflectance
Calculate the power required to overcome the skin friction drag on the keel of a sailing dingy moving through water at 2m/s. The keel projects 0.8m into the water and it is 0.4m wide
the masses of the bar and the disk are 5 kg and 10 kg respectively. the coefficient of kinetic frictionnbspbetween the
if the bar has clockwise angular velocity of 10 rad/s and Va= 20m/s what are coordinates of instantaneous center of the bar, and what is the value of Vb?
an engineer is designing a system that requires transporting .01 m3s of helium at 15degc and 120 kpa. the velocity of
a stainless steel bar 10 inch long and 38 inch in diameter is loaded in tension and experiences an elastic stretch of
the decision at hand is replacing the high grade muffler system with one made with low grade cheaper materials. the
suppose that you want to design a column to support a uniform compressive stress stress naught. if the columns cross
What happens to the cutting and thrust force as tool rake angle and cutting speed are increased and what is the relation between the cutting and thrust forces to the depth of cut?
With reference to basic constructional features, contrast the methods of compression employed by positive displacement and dynamic air compressors.
Steam @ 10 MPa, 600 degrees celcius enters the first-stage turbine of an ideal Rankine cycle with reheat. The steam leaving the reheat section of the steam generator is @ 500 degrees celcius
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