An engineer has been given the assignment of finding how much money can be saved over a year’s time by redesigning the press plates from the pattern shown in Figure 4.18a to the pattern shown in Figure 4.18b for stamping out 2.400 in. diameter disks. The stamping material is 14-gauge sheet metal and can be purchased in 100 ft rolls in varying widths in 0.5 in. increments. One square foot of metal weighs 3.20 lb. The metal is sold for $0.20/lb. Do not consider the ends of the rolls. The company expects to produce 38 000 parts this year. How much can be saved?
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When the square wave in Fig. 17.78(a) is applied to the circuit in Fig. 17.78(b), find the Fourier series of v?(t)
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____ also is known as straight polarity.
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