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Imagine a set of three N2 molecules frozen in a crystal so that no rotation or translation can occur. But there is energy in vibration, which totals E = 3ve , where the vibrational constant
e = 2358cm-1 . If we apply the equipartition principle to this sample, what temperature would give this energy?
a spherical communication satellite with a diameter of 2.5m is orbiting around the earth. the outer surface of the
The crankshaft in a given automobile rotates, on average, at 2500 revolutions per minute for a period of 2 h per day. How long would it take before the crankshaft has been subjected to 10^8 load cycles?
Discuss if this might be used to generate rather than use electrical energy. If so, what would be required? If not, why not?
Refrigerant 22 enters an insulated compressor operating at steady state as saturated vap or at -16 C with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70 C. Changes in KE and PE from inlet to exit can be ignored. Determine: (a) the volum..
a particulate control device has an efficiency which is a function of particle size as follows effdp 1 - exp- st
Knowing that the thin cylindrical shell shown is of mass m, thickness t, and height h, determine the mass moment of inertia of the shell with respect to the x axis
Aluminum-lithium alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. A commercial aircraft skin material having a density of 2.47 g/cm3 is desired. Compute the concentration of Li (..
a composite aluminium alloy e 72gpa and v 0.33 cylinder is made up of an inner cylinder with inner and outer
MEC1201 Assignment. Stress strain diagram of a material is given in Figure after tensile testing was performed. By using the provided diagram, determine the modulus of elasticity of the material
if a system has two redundant safety systems with failure rates of 0.16 and 0.22 faults per year respectively what is
a weightless box with a 0.4m by 0.4m square base is floating horizontally on the water surface. it contains a 0.2m
What is the conceptual difference between the (1) percentage of credit sales and (2) aging methods of estimating bad debts?
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