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1. Find the maximum energy in terms of D of the 3 * 3 two-dimensional Ising model, and draw one of the configurations with that energy.
2. In terms of the interaction constant D, find the difference in the average energy per atom of a ground state 50 * 50 two-dimensional Using model with and without the use of periodic boundary conditions
air expands through a nozzle from a chamber pressure and temperature of 300 psia and 1000 r respectively to an exit
Neglect fringing at the air gaps and any leakage fields. N = 1,000 turns, i = 0.2 A, lg1 = 0.02 cm, and lg2 = 0.04 cm. Assume the reluctance of the magnetic core to be negligible.
assuming a znd structure determine the key properties for the detonation wave described in problem 1. propagating
(Note there are four elastic moduli.) Formulate the equations of equilibrium as well as the boundary conditions for an orthotropic plate in terms of w using rectangular coordinates. Demonstrate that your equation degenerates to the case of the iso..
Describe when each type of failure occurs: direct tension, direct compression, column buckling, direct shear, torsional shear stress, bending stress
A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.
A silty clay soil has a plasticity index (PI) of 14. Estimate the optimum moisture content and the maximum dry unit weight of the soil when compacted using the procedure of:
A centrifugal compressor has an impeller tip speed of 366 m/s. Determine the absolute Mach number of the flow leaving the radial vanes of the impeller when the radial component of the velocity at impeller exit is 30.5 m/s and the slip factor is .9. G..
water at 24 degree c flows at 0.8 ms in a smooth 1.5 cm i.d tube that is kept at 27 degree c. the system is extremely
a spherical copper shell of inside radius 5cm and wall thickness 1cm loses heat to the surrounding air which is
1. a 2-d system consists of two sinkssources one is located at the origin and the other is located at the point 40.
The light bracket ABC is freely hinged at A and is constrained by the fixed pin in the smooth slot at B. Calculate the magnitude R of the force supported by the pin at A under the action of the 80- N · m applied couple
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