Find the DFT harmonic function of x [n] = (u [n] ? u [n ? 20] ) ? ?20[n] using its fundamental period as the representation time. There are at least two ways of computing X [k] and one of them is much easier than the other. Find the easy way.
What will be an ideal response?
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As a politician, Andrew Johnson developed a reputation as a(n)
A. supporter of the planter aristocrats. B. opponent of slavery. C. inspiring and calmly eloquent speaker. D. champion of the poor whites. E. secret Confederate sympathizer.
If a 0.047 ?F, 0.047 ?F and 0.47 ?F capacitor are connected in series across a 25 V source, the total capacitance equals ________ and each 0.047 ?F capacitor drops ________
A) 0.022 ?F, 11.9 V B) 0.564 ?F, 11.9 V C) 0.022 ?F, 25 V D) 0.564 ?F, 1.2 V
Mudsills are used to support shores _____
a. if the ground is not frozen b. beneath each floor of the building c. if forms are to be left in place d. when a slab-on-grade has not been placed and cured
A ____________________ type electronic thermometer has an indicator that uses numerical figures.
Fill in the blank(s) with the appropriate word(s).