Plants that fill large amounts of space on the ground and in the air serve as ____ plants
a. specimen c. accent
b. massing d. foundation
B
massing
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In welding with the metal arc process, alternating current is more widely used than direct current.
Answer the following statement true (T) or false (F)
Sheryl Sandberg is the COO of Facebook and during an all hands meeting emphasizes the amount of revenue that needs to be reached for the company to become profitable. Sheryl embodies a ________ leader.
A. delegating B. coaching C. directing D. supporting
Despite the size of the crop, irrigation water should always be placed 10 to 12 feet below the surface of
the soil.
Indicate whether the statement is true or false.A signal x(t) is sampled above its Nyquist rate to form a signal x[n] and is also impulse sampled at the same rate to form an impulse signal x?(t) . The DTFT of x[n] is X(F) = 10 rect(5F) ? ?1(F) or X ( ej? ) = 10 rect (5?/2?) ? ?2? (?) .
(a) If the sampling rate is 100 samples/second, what is the highest frequency at which the CTFT of x(t) is nonzero? (b) What is the lowest positive frequency greater than the highest frequency in x(t) at which the CTFT of x?(t) is nonzero? (c) If the original signal x(t) is to be recovered from the impulse sampled signal x?(t) , by using an ideal lowpass filter with impulse response h(t) = A sinc (wt) , what is the maximum possible value of w?