Consider the open-loop gain profile given below. Open Loop Gain AOL () 150 100 50 -50 100 10' 10? 10 10* 10 10 107 10 10° -100 -200 -300 10° 10' 10 10 10 10 10 10 10 10° Frequency (Hz) Is the op-amp unity-gain stable? Support your answer in part a by estimating the gain and phase margins. Hint: make your estimation graphically using the plots above; no need to solve any equations! a. b. ZAOL (deg.)

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A small  rm specializes in making  ve types of spare automobile parts.Each part is  rst cast from iron in the casting shop and then sent to the  nishingshop where holes are drilled, surfaces are turned, and edges are ground. Therequired worker-hours (per 100 units) for each of the parts of the two shops areshown below: Part 1 2 3 4 5Casting 2 1 3 3 1Finishing 3 2 2 1 1The pro ts from the parts are 30, 20, 40, 25, and 10 (per 100 units), respec-tively. The capacities of the casting and  nishing shops over the next month are700 and 1000 worker-hours, respectively. Formulate the problem of determiningthe quantities of each spare part to be made during the month so as to maximizepro t.

Question 1 of 14 are used on ladder diagrams to identify the line number that contains the output coil's contact. Wire numbers O Terminal numbers O Cross-Reference Numbers O Rung numbers Flag Reset Previous Next Go to Overview