Physics, 03.07.2019 05:20 victoriapellam04
Steam at a temperature of 250°c flows through a steel pipe (aisi 1010) of 60 mm inside diameter and 75 mnm outside diameter. the inside heat transfer coefficient is 500 w/m2.k. the steel pipe is insulated from outside with 3.75 cm 85% magnesia insulation. the outside heat transfer coefficient is 25 w/m2.k and the insulation emissivity is 0.8. the temperature of the outside air and the surrounding is 20°c (a) draw a clear schematic with all its details. (b) draw a clear thermal circuit network with all its details. (c) obtain the temperature expression with which one can calculate the outside temperature ts o. but do not calculate t. s, o
Answers: 1
Physics, 22.06.2019 05:10, linnialmira
A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
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Physics, 22.06.2019 10:00, jeffffffff
**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z
Answers: 1
Steam at a temperature of 250°c flows through a steel pipe (aisi 1010) of 60 mm inside diameter and...
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