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## A 6 cm diameter sphere or cylinder is initially at 100C. Later, this sphere or cylinder was thrown into water at 800C. Calculate how long it will take for the center temperature of the sphere or cylinder to reach 500C by taking the convection heat transfer coefficient as 80W / m2K. Thermal properties of cylinder material k = 0.587 W / moC alfa=0,13×10^-5 m^2/s

A 6 cm diameter sphere or cylinder is initially at 100C. Later, this sphere or cylinder was thrown into water at 800C. Calculate how long it will take for the center temperature of the sphere or cylinder to reach 500C by taking the convection heat transfer coefficient as 80W / m2K.

Thermal properties of cylinder material
k = 0.587 W / moC

alfa=0,13×10^-5 m^2/s

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