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valentinak56 [21]
3 years ago
9

Which of the following is true about ideal standards? a.Ideal standards provide allowance for normal breakdowns and interruption

s. b.Ideal standards can be achieved under efficient operating conditions. c.Ideal standards demand maximum efficiency and no slack is allowed. d.All of these choices are correct. e.None of these choices are correct.
Engineering
1 answer:
marysya [2.9K]3 years ago
8 0

Answer: D. All of the choice A, B and C are correct.

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A missile flying at high speed has a stagnation pressure and temperature of 5 atm and 598.59 °R respectively. What is the densit
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pV=nRT\\pV=\frac{m}{M}RT\\\frac{m}{V}=\frac{pM}{RT}\\\rho=\frac{pM}{RT}\\\rho=\frac{(5atm)28.66*10^{-3}\frac{kg}{mol}}{(8.20*10^{-5}\frac{m^3*atm}{K*mol})332.55K}=5.31\frac{kg}{m^3}

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