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A 3.5 kg rock is initially at rest at the top of a cli?. Assume that the rock falls into the sea at the foot of the cli? and that its kinetic energy is transferred entirely to the water. How high is the cli? if the temperature of 1.3 kg of water is raised 0.17?C? The acceleration of gravity is 9.81 m/s2 and the speci?c heat of water is 4186 J/kg ·

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