Physics, 25.06.2019 00:30 carolynhstevens
In a fire-tube boiler, hot products of combustion flowing through an array of thin-walled tubes are used to boil water flowing over the tubes. at the time of installation, the overall heat transfer coefficient was 400w/m2*k. after 1 year of use, the inner and outer tube surfaces are fouled, with corresponding fouling factors of r”ƒ,i= 0.0015 and r” ƒ,o= 0.0005 m2*k/w, respectively. determine the value of the overall heat transfer coefficient u.
Answers: 2
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Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?
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At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.
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In a fire-tube boiler, hot products of combustion flowing through an array of thin-walled tubes are...
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