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1. Describe the theory used for the IZOD test and what units are used to report toughness?
2. Explain the change in magnetic properties when steel is heated. Is this due to allotropic properties?
a certain generating power plant requires 1 mw output. two types of diesel- engine installations are available. one
refrigerant-134a at 240 kpa and 20c undergoes an isothermal process in a closed system until its quality is 20 percent.
refrigerant 410a is used for a heat pump. the temperature at the evaporator is -20f. the temperature at the exit of the
A hypothetical element X has 3 naturally occurring isotopes: 41.20% of 21X, with an atomic weight of 21.016 amu, 2.20% of 22X, with an atomic weight of 21.942 amu, and 56.60% of 24X, with an atomic weight of 23.974 amu. On the basis of these, calcula..
a 25-cm diameter rod is suspended horizontally in quiescent still air that is at 50degc. the rod is 250 cm long and is
in an orthogonal cutting experiment with a 10-degree rake angle cutting tool the chip velocity was measured to be 80 of
suppose that you want to design a bumper that will bring a 20-lb package moving at 10 fts to rest at 6 inches from the
a tank has a volume of 0.5 m3 and contains nitrogen and water vapor. the temperature of the mixture is 50c and the
the uniform sphere b of radius r6cm and mass mb 5kg is rigidly attached to the uniform thin bar ab which is pinned at a
you are designing a centrifugal compressor system to compress hydrogen at 200 kpa absolute to 7000 kpa absolute
A gas turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 1600 kPa. The working fluid is air, which enters the compressor at 40 degrees Celsius and leaves at 650 degrees Celsius. Using constant specific hea..
A uniform circular disk of mass m = 1 kg and radius R = 0:4m rolls down an incline. Suppose the disk starts rolling from rest. Find the speed of the center-of-mass when the disk is 2m down the inclined plane.
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