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Consider a system, at temperature 400 K, consisting of 1000 molecules, each having only two accessible states, with energies ε0 = 0 and ε1 = 0.1 eV, respectively. Find
(a) the probability for a molecule to be in the excited state,
(b) the average energy of the system.
You have been asked to test a method called 'catWhiteSpace' in a 'Paragraph' object that, within the paragraph, replaces sequences of blank characters with a single blank character.
Calculate the Gibbs free energy change of a rubber band stretched to 5 times its original length with concurrent contractions in its other two dimensions of 2.24 times at 25 C. The number of rubber molecules per unit volume, N, for a typical rubber i..
A 2-in.-diameter copper rod is reduced to a 1.5-in. diameter, then reduced again to a final diameter of 1 in. In a second case, the 2-in.-diameter rod is reduced in one step from a 2-in. to a 1-in. diameter. Calculate the % CW for both cases.
A built-up cantilever beam having a bending stiffness of 200 N/m supports a mass of 2 kg at its free end. The mass is displaced initially by 30 mm and released.
as the airplane begins its takeoff run at t 0. the normal forces exerted on its tires at a and b are na 4.2 kn and nb
This usually means an antenna between λ/50 to λ/10 in length. Given: In the short dipole, the current is linear: I(z') = I0(1 - (2/l)|z'|), where I = λ/20 is the total length of the dipole and 10 is constant.
Calculate the heat loss and the interfacial temperature using a three-element model using the data given in Table 2.2.
determine the maximum velocity to which water can be accelerated by the nozzles before striking the turbine blades.
determine the diameter d of the bars.
Calculate the surface temperature of the conductor - represent the radiation heat trans- fer rates for N shields and no shields, respectively.
a helical compression spring is made of no. 18 .0147 in wire having a torsional yield strength of 108 kpsi. it has an
Residential integrated systems capable of generating electricity and providing space heating and water heating will reduce reliance on electricity supplied from central power plants. For a 2500-ft2 dwelling in your locale
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