A smooth vertical steel tube carries water at a pressure of 10 bars. Saturated liquid water is pumped into the D=0.05 diameter tube at its bottom end (x=0) with a mean velocity of um=0.005 m/s. The tube is exposed to combusting pulverized coal, providing a uniform heat flux of q''=2000 W/m^2 . Determine the tube wall temperature and the quality of the flowing water at x=15 m. Assume Gs, f=1.

Saturated water, liquid (10 bars): Tsat = 452.8 K, \rho = 887.3 kg/m3 , hfg =2014 kJ/kg, \mu L =149.4 × 10- 6 N⋅s/m2 , kL = 0.6766 W/m⋅K, Prl Prl= 0.979;

Water vapor: \rho v = 5.094 kg/m3 , µv = 14.95 × 10-6 N⋅s/m2 , kv = 0.03353 W/m⋅K, Prv = 1.149.

the warning light flashes for a second or two when the engine starts. if it stays on, there's must be something wrong with the coolant. you should never dare to continue driving when the light is on. pull over as soon as possible and shut the engine off.

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answer:

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answer:

understeer generally occurs when the front tyres start slipping while you go around the curve.

explanation:

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