The voltage divider network of Figure P2.52 is designed to provide vout = vS/2. However, in practice, the resistors may not be perfectly matched; that is, their tolerances are such that the resistances are unlikely to be identical. Assume vS = 10V and nominal resistance values of R1 = R2 = 5 k?. a. If the resistors have ±10 percent tolerance, find the expected range of possible output voltages. b. Find the expected output voltage range for a tolerance of ±5 percent.
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To protect against back siphonage in high-hazard situations, hospitals and medical laboratories use special backflow preventers called _____.
a. in-line vacuum breakers b. air-actuated check valves c. dynamic backflow valves d. pressure-differential actuators
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A good dam should have been rated in the top _____ of the herd
a. third c. quarter b. half d. tenth
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Is the product alpha-farnesene, made by HortResearch, natural or synthetic? Or is it both? Explain.
What will be an ideal response?
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The National Electrical Code® is published by the __________.
a. National Electrical Manufacturers Association b. National Fire Protection Association c. Occupational Safety and Health Administration d. Underwriters Laboratories
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