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Consider the sampling of real signals.(a) Typically, a speech signal that can be understood over a telephone shows frequencies from about 100 Hz to about 5 KHz. What would be the sampling frequency fs (samples/sec) that would be used to sample speech without aliasing? How many samples would you need to save when storing an hour of speech? If each sample is represented by 8 bits, how many bits would you have to save for the hourof speech?(b) A music signal typically displays frequencies from 0 up to 22 KHz. What would be the sampling frequency fs that would be used in a CD player?(c) If you have a signal that combines voice and musical instruments, what sampling frequency would you use to sample this signal? How would the signal sound if played at a frequency lower than the Nyquist sampling frequency?
If the voltage across a capacitor is a square wave, predict the resulting current waveform (draw the voltage and current waveforms). Repeat the process when the voltage across the capacitor is a sine wave.
(1) What is a Darlington transistor configuration (2) What are its advantages and disadvantages (3) When is a Darlington configuration used (4) Can Drlington transistors be purchased (5) Do they come in complimentary pairs
The circuit arrangements for each of the installations, the final circuit cable selection, the maximum demand estimation, and the circuit protection arrangements should be designed.
A magnetic material fills the half-space z 0) is free space. The per-meability of free space is mu_0 and the permeability of the magnetic material is 5 mu_0. The magnetic flux density in the magnetic material is B2= 10 ax+ 15 ay-20 az
A) Determine the individual residues at the single poles at s = 0 and at s = -1 B)determine the two residues at the complex conjugate poles C) using the inverse laplace transform of the single poles and the complex conjugate poles determine the time..
Determine (a) the required step up voltage ratio for satisfactory performance; (b) the voltage ratio of a standard buck-boost transformer that most closely meets the requirements of the load with the buck-boost transformer installed.
A ball is shot into the air at 30 degress above the horizontal. It's initial Velocity is 5m/s and lands at the same height that it is launched from. How far does it travel horizontally
A (3V, 300mA) flashlight bulb is to be used as the dial light in a 120V radio. What is the resistance of the resistor that should be connected in series with the flashlight bulb to limit the current
Describe the two spin echo methods (1.Hahn, 2. CPMG-Purcell et. al). Describe the role of p/2 and p pulses in each case and make a comparison and contrast. Give diagrams
Design a garage door controller using PLC Ladder Diagram (RSLOGIX 500 PLC SIMULATOR). The behavior of the garage door controller is as follows there is a single button in the garage, and a single button remote control.
What are the rated full -load speeds of a 400HZ motor that may be connected for either two or four pole operation, assuming a full load slip of 4% for both cases
S = {c(k + jl) | k = 3, 1, 1, 3 and l = 3, 1, 1, 3 and j = square root of -1, where c is a constant. Determine the value of c to ensure a unit energy constellation. Sketch this constellation. Find d^2 min and label the constellation points with bi..
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