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An FCC iron-carbon alloy initially containing 0.20 wt% C is carburized at an elevated temperature and in an atmosphere where in the surface carbon concentration is maintained at 1.0 wt%. If after 49.5 h the concentration of carbon is 0.35 wt% at a position 4.0 mm below the surface, determine the temperature at which the treatment was carried out.
If an automobile's braking distance from 100 km/h is 60 m on level pavement, determine the automobile's braking distance from 100 km/h when it is (a) going up a 60 incline, (b) going down a 2-percent incline.
The main elevator A of the CN Tower in Toronto rises about 349 m and for most of its run has a constant speed of 22 km/h. Assume that both the acceleration and deceleration have a constant magnitude of g/3 and determine the time duration t of the ..
Knowing that the modulus of elasticity of brass is 105 GPa, determine the magnitude of the load P for which the deflection of the plug is 1,25 mm downward.
Electricity might be used to run the fan to draw air through the system, and also to run a chiller - What is a typical COP for a commercial chiller?
how long will it take the puck to slow down to a speed of 1m/s and how long will it take for the puck to stop completely? How far will the puck travel before it slows to 1m/s? You can assume the table is very very long.
consider a supersonic wind tunnel with test section mach number of 2 and fixed geometry diffuser designed to operate
a hydraulic system has a mechanical advantage of 4. If a smaller piston has a diameter of 5 inches what is the diameter of the larger piston?
Midrange and amplitude components, A shaft is subjected to a completely reversed bending stress such that Xmax=40kpsi and Xmin=-40kpsi
a 100 pound ball is suspended from a wall by a rope that is pulled asided by a horizontal rope B and held so that rope A makes a angle of 30 degrees with the vertical wall. Find the tension in ropes A and B?
The effect on temperature and density of air under adiabatic compression, Air is going through a compressor
What tightening torque should be used if the connection is permanent and the fasteners are lubricated? What portion of the external load is taken by the bolts? By the members?
If the pipe is to be insulated with glass wool insulation (k=.05 W/m C) in order to decrease the temperature rise of water to .25 degrees C, determine the required thickness of the insulation.
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