Question: How long does it take the Sun to melt a block of ice at 0C with a flat horizontal area 1.0 m2 and thickness 1.0

How long does it take the Sun to melt a block of ice at 0°C with a flat horizontal area 1.0 m2 and thickness 1.0 cm? Assume that the Sun's rays make an angle of 35° with the vertical and that the emissivity of ice is 0.050.

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