Engineering, 24.02.2020 19:03, JamesLachoneus
An inventor claims that a secret machine can take two airstreams and produce in steady flow a single high-pressure exhaust steam. Specifically, this machine has two inflows of air. At one inlet port 10 kg/s enters at 0.101 MPa and 293 K. At the other, 2 kg/s enters at 20 MPa and 1273 K. There is a single air-outlet stream discharging to the atmosphere at 5.4 MPa.4 No fuel enters the machine, nor are there any other inflows or outflows of material. The casing around the machine is well insulated, so that heat transfer between the machine and the surrounding air is negligible. Assume that kinetic energies at all stations are insignificant. Is it possible that such a machine can be made to operate in steady state? For air, assume k=1.4 and cp=1.0035 kJ/kg-K.
Answers: 3
Engineering, 04.07.2019 08:10, doggo242
Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed
Answers: 1
Engineering, 04.07.2019 18:10, Candi9697
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, jennymares
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
An inventor claims that a secret machine can take two airstreams and produce in steady flow a single...
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