Engineering, 11.07.2019 02:20 robert7248
Consider the following fluids, each with a velocity of v = 5 m/s and a temperature of to-20°c, in cross flow over a 10-mm-diameter cylinder maintained at 50°c: atmospheric air, saturated water, and engine oil (a) calculate the rate of heat transfer per unit length, q', using the churchill-bernstein correlation. (b) lgnore water and ailk instead, solve again using the hiloetequation. if you are responsible for providing electric heat to heat this cylinder, how much electric heat would you provide to be safe?
Answers: 3
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 19:10
Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m
Answers: 1
Engineering, 04.07.2019 19:10
What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?
Answers: 2
Consider the following fluids, each with a velocity of v = 5 m/s and a temperature of to-20°c, in cr...
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