A resonant circuit with a high Q ________
A) has no pass-band B) tunes sharply
C) has a small voltage across the capacitor D) has a very wide pass-band
B
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Solidarity was
A. the slogan of the Southern Democrats who supported Reagan. B. a massive working-class labor union of Polish dissidents. C. the mutual pledge between Ronald Reagan and Margaret Thatcher to confront the Soviet Union. D. the slogan of the new religious right organization, the Moral Majority. E. a song widely used by the revived U.S. labor movement of the 1980s.
Needle valves are used for fine flow control because _____.
a. the shape provides a gradual increase or decrease in the size of the valve opening b. they are very inexpensive c. they are made of stainless steel d. they exhibit high head loss
Differentiate between prokaryotic and eukaryotic cells
What will be an ideal response?
State-of-the-art digital imaging equipment purchased 2 years ago for $50,000 had an expected useful life of 5 years and a $5000 salvage value. After its installation the performance was poor, and it was upgraded for $20,000 one year ago. Increased demand now requires another upgrade for an additional $22,000 so that it can be used for 3 more years. Its new annual operating cost will be $27,000 with a $12,000 salvage after the 3 years. Alternatively, it can be replaced with new equipment costing $65,000, an estimated AOC of $14,000, and an expected salvage of $23,000 after 3 years. If replaced now, the existing equipment can be traded for only $7000. Use a MARR of 10% per year. (a) Determine whether the company should retain or replace the defender now. (b) Based on the poor
experience with the current equipment, assume the person doing this analysis decides the challenger may be kept for only 2 years, not 3, with the same AOC and salvage estimates for the 2 years. What is the decision? What will be an ideal response?