Air at 25 C flows over a 10-mm-diameter sphere with a

Chapter , Problem 7.74

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Air at 25 C flows over a 10-mm-diameter sphere with a velocity of 25 m/s, while the surface of the sphere is maintained at 75 C. (a) What is the drag force on the sphere? (b) What is the rate of heat transfer from the sphere? (c) Generate a plot of the heat transfer from the sphere as a function of the air velocity for the range 1 to 25 m/

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