Engineering, 25.02.2020 17:53 saintsfan2004
5. A vertical cylinder, which is an infinite heat source with length of 170 cm and 30 cm in diameter that has a temperature of 34 °C, transfers heat to its surroundings which is at 20 °C. Assume a heat transfer coefficient of 15 W/m2-°C. Calculate calculate the heat losses to the environment. (Assume no heat losses from the base or top of the cilynder)
Answers: 1
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
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Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
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Engineering, 04.07.2019 18:10
Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
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Engineering, 04.07.2019 18:10
True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
Answers: 2
5. A vertical cylinder, which is an infinite heat source with length of 170 cm and 30 cm in diameter...
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