Arock of mass 0.449 kg falls from rest from a height of 25.5 m into a pail containing 0.487 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1830 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.

Arock of mass 0.449 kg falls from rest from a height of 25.5 m into a pail containing 0.487 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1830 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.