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Consider a mole of a material for which each molecule's electron cloud has l = 1,s = 0; there is no spin--orbit coupling. It is placed in an external field of 2 T. For this material, find
(a) its Curie constant,
(b) its magnetic moment at a temperature of 273 K,
(c) the value of x = µBB/kT at a temperature of 1.4 K,
(d) the magnetic moment at a temperature of 1.4 K.
In a four bar mechanism ABCD, AD is fixed and is 150 mm long. The crank AB is 40 mm long and rotates at 120 rpm clockwise, while the link CD = 80 mm oscillates about D. Link BC and AD are of equal length. Using the analytical/mathematical solution me..
consider the ideal vapor compression refrigeration cycle where the refrigerant is r134a. saturated vapor enters the
In the limiting case of a very small sphere, what is the minimum value of the convection heat transfer coefficient expressed in terms of the sphere diameter and thermal conductivity of the air?
The drag FD on an airfoil is related to its velocity V, its length L, its chord length c, its angle of attack a, and the density r and viscosity m of the air. Relate the drag to the other variables.
What is the probability that the strength is less than or equal to 5,000 psi. What is the probability that the strength is greater than 2,500 psi
Assume that 10,000 spur gears, 11 /8 in. in diameter and 1 in. thick, are to be made of 70-30 brass. What manufacturing method would you consider?
The 60-W 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 air by 50 Pa to maintain flow. The fan is located in a horizontal flow section whose diameter i..
Using the energy content (wet basis) of the waste components given in the Table P2-17, calculate the overall energy content of the waste having the composition shown. This calculation can be simplified by assuming 100 lb of waste
a balloon which is initially deflated is being filled with air at 25c and 3 bars to a final volume of 1m3 and 3 bars.
Describe a physically-plausible situation where the Reynolds number is (a) 1 (b) 10,000 (c) 1,000,000. For flow in tubes/pipes/ducts, use Red For flow over/along long/blunt objects, use Rel.
What are independent demand items? What two basic ordering systems are used for these items? What are dependent demand items? What system should be used to order these items?
this comes from the book fundamentals of engineering thermodynamics authors michael j. moran and howard n. shapiro 6th
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