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1. (a) Explain how pure copper is made.
(b) What are some of the important properties of copper?
(c) What is brass?
(d) What is bronze?
(e) Why does the Statue of Liberty appear green?
2. We say that copper can contain up to 40% Zn or 9% Al and still be single phase. How do we explain this statement in view of the phase diagrams for the Cu-Zn system? [See Figure 14-6(a).]
in the mass production of a certain mechanical part the average length of the part is 10.500 inches. the lengths of
The stresses at a point in plane stress on the body of a car were found to be sigma_xx = 30 MPa (C), sigma_yy = 60 MPa (T) and Tau_xy = 40 Mpausing matrix methods a) determine the normal and shear stresses on a plane passing through the point that is..
0.25 kg of red-hot 700 c coals are taken from the fireplace and left in the middle of a room. the room is 3 m x 4 m x
a person with a mass of 85 kg wearing snow skis is gliding down a long slope at an angle of 15 degrees. each ski is 185
a vintage automobile has an intake manifold vacuum gage in the dashboard instrument cluster. cruising at 20.1 ms 45 mph
The 60W fan of a central heating system is to circulate air through the ducts. The analysis of the flow shows that the fan needs to raise the pressure of the air by 50Pa to maintain flow. The fan is located in a horizontal flow section whose diameter..
The figure shows a weapon called a battering ram (modern large battering rams are typically mounted on armored vehicles). The ram has weight Wr=2590 lb, center of mass at E, and radius of gyration kE=6.4 ft. Also let the distance between points A a..
a 5 ft3 tank containing steam at 14.7 psia 1 quality is fitted with a relief valve. heat is transferred to the tank
Explain circumstances in which it is possible to improve maintainability to counteract poor reliability, and also identify circumstances where this approach is unrewarding.
Write the combustion equation for the complete combustion of methane in a furnace chamber with 200% theoretical air and 20% percent excess air. Take into account that some of the oxygen is lost to the surface wall material of the furnace. Find the ..
Determine the average luminous exitance of the opaque interior surfaces of the room - what is the reflected component at this point?
If a component of this steel had been subjected to 5000 cycles at 100 ksi and 10,000 cycles at 75 ksi, how many additional cycles at 62 ksi would cause failure?
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