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2 A steel ball initially at 55 is dropped from a tall structure with zero initial velocity. The ball is 1 cm in diameter, and

2 A steel ball initially at 55 is dropped from a tall structure with zero initial velocity. The ball is 1 cm in diameter, and the surrounding air is at 25. Calculate the average heat transfer coefficient for a 5 second duration flight. Hint: As a first approximation neglect the air resistance to fall

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