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A 30 cm a diameter copper sphere having a diameter

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Reference no: EM13626585

A 3.0 cm a diameter copper sphere having a diameter initially at a uniform temperature of 50°C is suddenly exposed to an airstream of 10°C with h=15 W/m2 · °C. How long does it take the sphere temperature to drop to 25°C?

Reference no: EM13626585

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