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A rectangular casting having the dimensions 3 inch by 5 inch by 0inch solidifies completely in 11.5min. Using n=2 in 2 in Chvorinov’s rule, calculate the mold constant B. Then compute the solidification time of a 0.5inch by 8inch by 8inch casting poured under the same conditions?
a 5.70kg block hangs from a spring with spring constant 1900nm . the block is pulled down 6.80 cm from the equilibrium
a car radiator has an effective heat transfer area of ??15 m2. cooling water temperature is 85 c in and the 60 c out of
a base for a building column measures 18.0 in by 18.0 in on a side and 12.0 in high. compute the cross-sectional area
a small vapor-compression refrigeration unit is to be built into a recreational vehicle and is designed to operate on a
The compressor in a plant receives carbon dioxide at 100 kPa, 280 K at a low velocity. At the compressor exit the carbon dioxide is at 1100 kPa and 500 K with a velocity of 25 m/s. The carbon dioxide then flows into an isobaric heat exchanger where i..
Briefly discuss the importance of Structural Mechanics in Mechanical Engineering? List four different types of loadings that can be applied on mechanical structures or components
A chunk of soil has a wet weight of 62lb and a volume of .56ft^2. When dried in an oven, the soil weighs 50 lb. If the specific gravity of Gs = 2.64, determine the water content, wet unit weight, dry unit weight, and void ratio of the soil.
Steam at 5.0 MPa, 500 degrees C enters an insulated turbine operating at a steady state with a mass flow rate of 7kg/s and exits at 0.3 MPa. Kinetic and Potential energy effects are negligible. Determine the maximum theoretical power that can be deve..
Four kilograms of water, initially a saturated vapor at 75 kPa, are cooled to saturated liquid while the pressure is maintained constant. Determine the work and the heat transfer for the process, each in kJ. Show that the heat transfer equals the cha..
a particle moves in the x-y plane such that its postion is defined by r2ti4t2jft where t is in seconds. determine the
a 45-g bullet is fired with a velocity of 600 ms into a wooden block which rests against a solid vertical wall. knowing
air is cooled and dehumidified as it flows over the coils of a refrigeration system at 1atm from 25degc and a humidity
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