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Example 13.1: Hailstones fall from a certain height. If they melt completely on reaching the ground, find the height from which they fall. (g

Example 13.1: Hailstones fall from a certain height. If they melt completely on reaching the ground, find the height from which they fall. (g = 10 ms , L = 80 calories/g and J=4.2 J/calorie).

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