Mathematics, 29.02.2020 04:59 adreyan3479
A concentric-tube heat exchanger cools hot water owing at 1 kg/s from 80C to 30C. It uses air owing at 5 kg/s to perform this cooling operation. Air enters at 10C and exits at 51.5C. (a) What is the log-mean-temperature-di erence
Answers: 2
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Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?
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Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height
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10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u.s. dollars for every 100 euros. b) gabriella averages 100 u.s. dollars for every 25 euros. c) gabriella can exchange 75 u.s. dollars for 100 euros. d) gabriella can exchange 100 u.s. dollars for 75 euros.
Answers: 2
A concentric-tube heat exchanger cools hot water owing at 1 kg/s from 80C to 30C. It uses air owing...
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