Practical RC filter design should allow for source and load resistances as shown in Fig. 14.110. Let R = 4 k? and C = 40-nF. Obtain the cutoff frequency when:
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In a hypothetical scenario, the National Institute of Standards and Technology has received a new replica of The Kilogram. It is weighed five times. The measurements are as follows, in units of micrograms above 1 kg: 114.3, 82.6, 136.4, 126.8, 100.7.
a. Is it possible to estimate the uncertainty in these measurements? If so, estimate it. If not, explain why not. b. Is it possible to estimate the bias in these measurements? If so, estimate it. If not, explain why not.
Soils that are compacted during construction should be ____ before replanting to provide a better base for new plants, allow for better drainage, and reduce runoff.
A. fertilized B. aerated C. amended D. allowed to revitalize for six months
Concrete-surface imperfections caused by trapped bubbles of air or water are referred to as _____
a. voids b. bug holes c. lapses d. pockmarks
Sample the signal x(t) = 15 [sinc(5t) ? ?2(t)] sin(32?t) to form the signal x[n]. Sample at the Nyquist rate and then at the next higher rate for which the number of samples per cycle is an integer. Graph the signals and the magnitude of the CTFT of the continuous-time signal and the DTFT of the discrete-time signal.
What will be an ideal response?