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1 what is the valence bond model what is the energy band model2 if all the valence electrons in silicon are in the
1 why are the valence electrons the most important on influencing the electrical properties of silicon why are the core
draw to scale the three electron energy level and transition energy diagrams of the isolated neutral he atom with two
1 the electron affinity to an isolated neutral si atom is 139ev while to a neutral si crystal it is 402ev why is it
1 the two lowest-energy wave functions of the electron bund to the two protons are symmetric and antisymmetric sketch
1 does the square well potential energy persist after on electron is trapped to the ground or an excited state what is
answer the question posed in problem again but this time give a more detailed and less qualitative or more quantitative
1 identify two primitive and two non-primitive cells of a two-dimensional face-centered square lattice give the
1 identify two primitive and two non-primitive cells of the two-dimensional square lattice which are not given in
find some noise vectors that give the all-zero syndrome that is noise vectors that leave all the parity checks un
a heavy string is tied at one end to a movable support and to a light thread at the other end as shown in figure 15-e12
jo has a test for a nasty disease we denote jos state of health by the variable a and the test result by bthe result of
urn a contains three balls one black and two white urn b contains three balls two black and one white one of the urns
urn a contains five balls one black two white one green and one pink urn b contains five hundred balls two hundred
a two ordinary dice with faces labelled 1 6 are thrown what is the probability distribution of the sum of the
1 hamming code can correct any one error might there be a 14 8 code that can correct any two errors optional extra does
you meet fred fred tells you he has two brothers alf and bob what is the probability that fred is older than bobfred
fred rolls an unbiased six-sided die once per second noting the occasions when the outcome is a sixa what is the mean
1 a circular coin of diameter a is thrown onto a square grid whose squares are b times ba buffons needle a needle of
a die is selected at random from two twenty-faced dice on which the symbols 1-10 are written with non-uniform frequency
sketch the posterior probability ppa saba f 3 what is the most probable value of pa ie the value that maximizes the
1 by how much could the size of a file be reduced given that it is an ascii file how would you achieve this reduction2
in a game two coins are tossed if either of the coins comes up heads you have won a prize to claim the prize you must
a bag contains one counter known to be either white or black a white counter is put in the bag is shaken and a counter
another example in which the emphasis is not on priors you visit a family whose three children are all at the local