Engineering, 29.01.2020 02:44 thedeathlord123
Suppose we know little about the strength of materials but are told that the bending stress in a beam is proportional to the beam half thickness y and also depends on the bending moment m and the beam area moment of inertia i. we also know that, for the particular case m = 2900 in·lbf, y = 1.5 in, and i = 0.4 in4 , the predicted stress is 75 mpa. using this information and dimensional reasoning only, find, to three significant figures, the only possible dimensionally homogeneous formula = y f(m, i).
Answers: 3
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.
Answers: 3
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:10
Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1
Answers: 1
Suppose we know little about the strength of materials but are told that the bending stress in a b...
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