Air enters a 30 mm diameter pipe with a velocity of 153 m/s and a temperature of 300 K. If the average friction factor is f= 0.040, determine the length of pipe needed so that sonic flow occurs at the exit. Also, what is the velocity of the air in the pipe at the exit and at L = 0.8 m?

that seems like a hard question I hope you find the answer

answer:

d. attempt to find the owner, then leave your information if you cannot find them.

explanation:

d. represents both (b) and (c).

more logical as well.

b and c are to complicated.

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answer:

explanation:

assault rifle is a rapid-fire, magazine-fed rifle designed for military use. it is a shoulder-fired weapon that allows the shooter to select between semi-automatic (requiring you pull the trigger for each shot), fully automatic (hold the trigger and the gun continuously fires) or three-shot-burst modes.