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Question
In 1986, a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately a rectangle 160 km long, 40.0 km wide, and 250 m thick. (a) What is the mass of this iceberg, given that the density of ice is $917\textrm{ kg/m}^3$ ? (b) How much heat transfer (in joules) is needed to melt it? (c) How many years would it take sunlight alone to melt ice this thick, if the ice absorbs an average of $100\textrm{ W/m}^2$, 12.00 h per day?
1. $1.47\times 10^{15}\textrm{ kg}$
2. $4.90\times 10^{20}\textrm{ J}$
3. $48.5\textrm{ years}$
Solution Video