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Solve these two questions. They are not very long. And try to write clearly and accurately!
Q1: The wave function ψk(x) of an electron in a crystal may be expressed in a Fourier series as ψk(x)=∑C(k)exp(ikx). Use this statement to prove the Bloch theorem.
Q2: Show that the wavelength associated with an electron having an energy equal to Fermi energy is given by
λF=2*sqrt(pi/(3*n))
where n seems is concentration of electrons(confirm it!).
It needs to be able to be explained in an essay of no more than 500 words. My professor always gives me 75's on these because he says that I do not identify the right factors clearly.
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In the excerpt, king john says he had no other options but to sign the magna carta. Do you agree with his statement? Write a paragraph either defending King John decision or showing a diffrent point of view.
Describe how characteristics of the region of Colonial America impacted your chosen conflict - Discuss the American ideals or philosophies that may have caused this event to occur. How have these ideals and philosophies changed to the way we live ..
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