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Calculate the total % β and the % eutectic microconstituent at room temperature for the following lead-tin alloys: 10% Sn, 20% Sn, 50% Sn, 60% Sn, 80% Sn, and 95% Sn. Using Figure 11-18, plot the strength of the alloys versus the % β and the % eutectic and explain your graphs.
Figure 11-18
An inventor claims to have developed a device that converts heat transferred to it at 1500 degrees Fahrenheit into work with a thermal efficiency of 70%. Heat is rejected to the 70 degree Fahrenheit surroundings. Is this possible? Why or Why not?
consider a subsonic engine inlet i.e. a diffuser with an inlet area of 2300 in2 and an exitinlet area ratio of 1.44.
Repeat this estimate for the average American diet (the typical American gets two-thirds of his or her calories from meat and one-third from grain)
Degree of Reaction - Definition of flow coefficient, and the velocity diagram.
a battery of cylindrical hollow-fiber membranes is operated at steady state to concentrate a bacterial suspension from
Derive a relationship for the efficiency of a parabolic collector with a receiver/absorber tube corresponding to the reference case in Figure 8.18 as a function of insolation and temperature difference between the collector surface and ambient.
A piston-cylinder device initially contains 50L of liquid water at 40 degrees C and 200kPa. Heat is transferred to the water at constant pressure until entire liquid is vaporized.
an elevator is created by using a hose hanging from the top of a 10 m building. the hose is diverted into 4 jets at the
To solve ax = b Find a number y such that ay is integer (and possibly a factor of b) Then if k Ay = b, the answer is ky What is the concept they understood?
What is going on here? Is it likely that the customer could see so many bad assemblies, given what the manufacturer observed in its process? Perform appropriate calculations, and write up your results in a short report. Make whatever assumptions y..
a pipe is sealed at the top and is submerged in water. it is then drawn upward from the water. how tall could the
a liquid at 10 c kinematic viscosity of 1.30710-6 m2s is to flow from a roof-top reservoir to a tanker truck through a
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