If concern for the safety of people passing by was an issue, would it be wise to use an inorganic mulch in a park where mowing was usually done when the park was being heavily used? Why?

What will be an ideal response?


No. Inorganic mulches can be propelled if hit by the lawnmower, possibly injuring someone.

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In a logic diagram, each line of logic must end with a ____.

A. circuit B. coil C. pump D. switch

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When welding in the 2G vertical fixed position, to reduce the ____ the bottom of the weld, increase the electrode-to-work angle.

A. visual defects at B. number of weld beads at C. sagging of D. arc strikes near

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To apply the rule of thirds, imagine dividing the frame into nine sections, then:

a. place only three objects in the frame b. place objects of interest at dividing lines c. ensure that objects in the frame are three feet from each other d. place objects in the frame at three different heights

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In Figure E-24 are 6 pole-zero diagrams for 6 discrete-time system transfer functions. Answer the following questions about them.


a) Which of these systems have an impulse response that is monotonic? (Monotonic means always moving in the same direction, always rising or always falling, not oscillating or ringing.)

(b) Of those systems which have a monotonic impulse response which one has the fastest response to a unit sequence? (Fastest means approaching its final value more quickly.)

(c) Of those systems which have an oscillatory or ringing impulse response, which one system rings at the fastest rate and has the largest overshoot in its response?

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