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The waterfall "Angel Falls" in Venezuela is the world's tallest at h=979 m. Assume that the water's velocity on the top of the falls and on the bottom of the falls (after it hits the ground and begins to flow away) is equal, and that no total energy is lost by the water to the air/ground. Estimate the change in temperature of the water between the top and the bottom of the waterfall in Celsius.
The specific heat of water is C=4200 J/kgK.
The gravitational acceleration is g=−9.8 m/s2.