Question: A sphere at 8 0 C is surrounded by ( a mark ) a cooling medium at 0 C . Calculate the rate of cooling.

A sphere at 80C is surrounded by
(a mark)
a cooling medium at 0C. Calculate the rate of cooling. Give you answer Watts.
D=10cm
z=30cm
k=0.55Wm?K
A sphere at 80C is surrounded by (a mark) a cooling

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