The walls of an ice chest are made of 2.00-mm-thick insulation having a thermal conductivity 0.00300 W/m?K. The total surface area of the ice chest is 1.20 m2

If 4.00 kg of ice at 0.00°C are placed in the chest and the temperature of the outside surface of the chest is 20.0°C, how long does it take the ice to melt under steady state conditions? The latent heat of fusion of water is 79.6 cal/g = 334 kJ/kg.
A) 4.22 h
B) 22.1 h
C) 17.6 h
D) 1.33 d
E) 10.3 h


E

Physics & Space Science

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What will be an ideal response?

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What is the angle from the central maximum to the next interference maximum? (mneutron = 1.675 × 10-27 kg, h = 6.626 × 10-34 J ? s) A) 17.0° B) 21.0° C) 33.1° D) 60.0° E) 90.0°

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