Explain water is slightly warmer at the bottom of a waterfall than at the top for the reason that the gravitational potential energy is converted first to kinetic energy of the falling water as well as finally to heat energy as it comes to rest at the bottom. Presume a waterfall is located on a planet where the gravitational acceleration is g=6 m/s2. Evaluate the height of the waterfall if the water temperature is 0.213 C warmer at the bottom than the top. Gravitational potential energy is given by mgh where m is the mass of a given amount of water and h is the height of the water. Explain the heat capacity of water is 4184 J/kg/K.