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1. Explain why aluminum alloys containing more than about 15% Mg are not used.
2. Would you expect a 2024-T9 aluminum alloy to be stronger or weaker than a 2024-T6 alloy? Explain.
3. Estimate the tensile strength expected for the following aluminum alloys:
"Fuel energy" is available at 2000 F at a local power plant. What is the maximum work that can be produced for each BTU of fuel energy if it is winter and the surroundings are at 40 ¯F ? If this work is used to maintain a residence at 80 F, how much ..
Carbon content of steel, A steel contains 55% alpha-ferrite and 45% gamma-ferrite or austenite at 750 degrees celcius. What is the carbon content of steel?
At what value of the strain should the operators take action to reduce the pressure in the tank? (Data for the steel are as follows: modulus of elasticity E = 205 GPa and Poisson's ratio 0.30.)
A streamline in 20-C water is 2 mm from a ?at plate at the leading edge. Using the parabolic velocity pro?le of Sec. 8.5.3 with U1 ¼ 1 m=s, predict how far from the plate the streamline is when x ¼ 1 m. Show that the power-law form for the velocity ..
To determine the heat transfer characteristics of a cylinder under cross flow conditions when the cylinder is isolated.
a time traveler finds himself in an unknown place on earth at an unknown time of the year. the sky is cloudy at night
Agriculture. Table 3 shows the yield (in bushels per acre) and the total production (in millions of bushels) for corn in the United States for selected years since 1950.
the two 1.5-kg spheres are released from rest and gently nudged outward from the position theta0 and then rotate in a
given a rectangular sample of ductile iron 60-40-18 with cross sectional dimensions 0.8 in x4 in calculate the stress
Assume the same eight features are used to assess quality
what is the ratio of the dynamic viscosity of air to that of water at standard pressure and temperature of 20degc? what
continuous review inventory control is being applied to purchase motors for an electric fan manufacturer. demand is
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