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A rock of mass 0.315 kg falls from rest from a height of 19.1 m into...

A rock of mass 0.315 kg falls from rest from a height of 19.1 m into a pail containing 0.453 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1900 J/kg C°. Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees.

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