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Niobium (Nb) has the BCC crystal with a lattice parameter a = 0.3294 nm. Find the planar concentrations as the number of atoms per nm2 of the (100), (110) and (111) planes. Which plane has the most concentration of atoms per unit area? Sometimes the number of atoms per unit area nsurface on the surface of a crystal is estimated by using the relation nsurface = nbulk 2/3 where nbulk is the concentration of atoms in the bulk. Compare nsurface values with the planar concentrations calculated above and comment on the difference. [Note: The BCC (111) plane does not cut through the center atom and the (111) has 1/6th of an atom at each corner.
Two positive charges of 250 microcoulombs each are 20cm apart. Determine the electric potential halfway between them.
Simulate the stochastic system above until time T = 100. Plot the resulting number of mRNA and protein over time.
What is the required calibration factor for a sinusoid? Would the same calibration factor apply to a square wave?
A coin is flipped three times, and the random variable X denotes the total number of heads that show up. The probability of landing on a head in one flip of this coin is denoted by p.
Calculate the unit step response of the DT systems with the following impulse responses: a-) h[k]= u[k+6]- u[k-10] b-) h[k]= 3^k- u[-k]
If a direct expansion coil delivered from the factory has lost its nitrogen pressure charge, what should be done?
Consider a magnetic dipole carrying a current I. a. Calculate the magnetic flux density B at a point P specified in spherical coordinates. Express the answer in terms of the magnetic dipole moment m. Justify all the assumptions adopted.
An amplifier has a sinusoidal output signal and is delivering 100 W to a 50- load resistor. What output resistance is required if the amplifier is to dissipate no more than 2 W in its own output resistance?
What is the purpose of user parameter control/network parameter control? Define traffic parameters and traffic descriptors.
Why Motor rated in kW/Horsepower instead of kVA
With this particular connection can the rated power for the primary side be supported bythe secondary side? If not, why and how could the transformer be changed to supportrated power without changing the voltage characteristics of the set-up?
An internet access provider (IAP) owns two servers. Each server has a 50% chance of being "down" independently of the other. Fortunately, only one server is necessary to allow the IAP to provide service to its customers
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