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A metallic sphere having radius 0.08m and mass m = 10 kg is heated to a temperature of 227∘ Cand suspended inside a box whose walls are at a temperature of 27∘ C. The maximum rate at which its temperature will fall is Take e=1, σ=5.8×10−8 Wm−2 K−4 and specific heat of the metal S=90 cal/kg/k; J=4.2 J/cal) |
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Answer» A metallic sphere having radius 0.08m and mass m = 10 kg is heated to a temperature of 227∘ Cand suspended inside a box whose walls are at a temperature of 27∘ C. The maximum rate at which its temperature will fall is Take e=1, σ=5.8×10−8 Wm−2 K−4 and specific heat of the metal S=90 cal/kg/k; J=4.2 J/cal) |
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