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consider the back to back cascade of an ideal C to D and D to C converter. Both have the same sampling rate fs. Suppose that the signal being sampled is:
x(t) = cos(324*pi*t - pi/4) + cos(80*pi*t - pi/4)
Find the value of fs so that the reconstructed signal is
x(t) = sqrt(2)cos(21*pi*t)
A constant(dc) current i(t)=3mA flows into a 50x10^(-6) capacitor. The voltage at t=0 is v(0)= -20V. The references for v(t) and i(t) have the passive configuration. 1. find
The voltage across a 1x10^(-6)F capacitor is given by v(t)=100e^(-100t) in which time t is in seconds. 1. find an expression for the current 2. find an expression for the powe
An 8mm thick brass [E=83 GPa; v = 0.33] plate is subjected to biaxial stress with sigma x = 180 MPa and sigma y = 65 MPa. The plate dimensions are b = 350 mm and h = 175 mm.
A metal plate is subjected to tensile stresses of sigma x = 21 ksi and sigma y = 17 ksi. The corresponding strains measured in the plate are Ex=920 µE and
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A three phase generator is connected to a three phase load via a step up three phase transformer, a short three phase transmission line and a step down three phase transform
A. Two machinery options are described below. Calcuate the present value of each of the items specified. Assume an interest rate of 6% and a useful life of 8 years. Show all
An assembly line can produce 90 units per hr. The line hrly cost is $4500 on stright line ( the first 8 hrs). Workers are guaranteed a minimum of 6 hrs. There is a 50% premi
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