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For the truss shown in Figure, use symmetry to determine the displacements of the nodes and the stresses in each element.
All elements have E ¼ 30 106 psi. Elements 1, 2, 4, and 5 have A = 10 in2 and element 3 has A = 20 in.
High-fidelity audio has a maximum frequency of 22 kHz. If 20 bits are used to encode the quantized signal, what bandwidth is needed as a minimum for the digital signal?
a)Write the diffrenece equation for a four-term moving average filter. b) The input x[n] = cos(n pi/6)u[n] is passed through the four-term moving average filter. Solve for the first 5 samples of the output.
f(t) = t. B. f(t) = Sin wt find F(s). C. f(x) = y" + 2y' +y D. f(x) = y"' +4y" + 6y' + 9y. E. Given a serious electrical LRC circuit with an input source of 3Sin wt find the current i(t) expressed as I(s). Hint: use jwL and 1/jwC and w = 2pief
Given N-type silicon sample with uniform donor doping of (a) Nd= 1018/cm3 , (b) Nd= 1019/ cm3 and (c) Nd= 106/cm3, calculate the Fermi levels at room temperature assuming full ionization for all cases.
A point charge Q1 lies at the center of a spherical conducting shell of inner radius a and outer raduis b. find the charge density on the two surfaces of the conduting shell if it has a net chargeQ2
determine whether the statements are valid or invalid. If a statement is valid, please give a proof as in problem 1. If a statement is invalid, you need only provide a counterexample. If x + y = x + z, then y = z
Determine the generator matrix and find all possible code words.
To maintain a freezer box at -40°C on a summer day when the ambient temperature is 27°C, heat is removed at the rate of 1.25 kW. What is the maximum possible coefficient of performance of the freezer
trace how the electrons and holes move through the device under the two different biasing conditions. Explain how these three devices work in terms of holes and electrons.
Silicon, originally intrinsic, is doped with 4*10^16 /cm^3 of arsenic atoms at room temperature. a) What proportion of the silicon atoms have been replaced by arsenic atoms b) What is the thermally generated density of electrons and holes
An Electromagnetic wave at 120 MHz travels through a lossy di-electric medium. At this frequency, the depth of penetration is 4 m, if the wave travels 10 m, find the attendant attenuation in dB.
EE 321 - Fall 2016 - Find the pole locations (e.g., using MATLAB), and plot the pole locations in the s-plane. Identify the angle of the complex poles in the s-plane and verify that they correspond to a 3rd-order Butterworth filter.
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