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Consider a rectangular fin that is used to cool a motor- cycle engine. The fin is 0.15 m long and at a tempera- ture of 250°C, while the motorcycle is moving at 80 km/h in air at 27°C. The air is in parallel flow over both surfaces of the fin, and turbulent flow conditions may be assumed to exist throughout.
(a) What is the rate of heat removal per unit width of the fin?
(b) Generate a plot of the heat removal rate per unit width of the fin for motorcycle speeds ranging from 10 to 100 km/h.
you are to design a balloon capable of lifting 200 kilograms the mass of the gas in the balloon must be 200 kilograms
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Calculate the concentration of vacancies in Pb at its melting temperature of 327oC. Assume an energy for vacancy formation of 0.55 eV/atom. Lead has an atomic weight of 207.2 g/mol and a density of 11.35 g/cm3.
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An air standard Diesel cycle has a compression ratio of 15, and the heat transferred to the working fluid per cycle is 800 Btu/lbm. At the beginning of the compression process the pressure is 14.7 lb/in^2 and the temperature is 60 F. Determine the pr..
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