How long does it take the Sun to melt a block of ice at
Chapter 21, Problem 38P(choose chapter or problem)
(II) How long does it take the Sun to melt a block of ice at \(0^\circ{C}\) with a flat horizontal area \(1.0 \ \mathrm {m}^2\) and thickness 1.0 cm? Assume that the Sun’s rays make an angle of \(30^\circ\) with the vertical and that the emissivity of ice is 0.050.
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