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Consider 6.0 kg of austenite containing 0.45 wt% C, cooled to below 727 degrees Celcius (1341 degrees Farenheit).a) What is the proeutectoid phase?b) How many kilograms each of total ferrite and cementite form?c) How many kilograms each of pearlite and the proeutectoid phase form?d) Schematically sketch and label the resulting microstructure.
If the unit can perform its function either in State 1 or 2, find the steady-state availability A for the device.
Two collars C and D move along the vertical rod as shown. Knowing that the velocity of collar C is 50 in/s downward, find the instant centers of all three bars, the angular velocity of AB, the velocity of collard D.
A long electric wire of radius r0 generates heat at rate of q'''. The surface is maintained at uniform temp of T0. Write heat equation and boundary conditions for steady state one dimensional conduction.
determine the smallest allowable value of the coefficient of static friction between the collar and the rod if the collar is not to slide when a) a =15° b)a = 45°. Indicate for each case the direction of the impending motion.
plot the evolution of the height, h, of the stable boundary layer and the strength, delta thetas, as a function of time.
an open belt drive connects two pulleys 1.2 and 0.5m diameter on parallel shafts 3.6m apart. the belt has a mass of
determine the actual and minimum theoretical operating costs, each in $/day.
the 3-kg slender rod rotated in a vertical plane about a pivot at b. a spring of constant k 300 nm and of unstretched
air at the rate of 18 kgs is drawn into the compressor of a jet engine at 55 kpa and -23oc and is compressed reversibly
Design life is 9630 hours, rotating at 250 rpm, load of 880 lbs, what is the basic design load rating (assuming no axial loads)?
The force exerted on the cue ball by the cue is horizontal. Determine the value of h for which the ball rolls without slipping. (Assume that the frictional force exerted on the ball by the table is negligible.)
Derive the dynamic equation for RP manipulation of example 6.5 (Introduction to robotics by Craig)by using newton-euler's dyanamics.
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