Question: A 25.0 kg weight, arranged so it will turn a paddle wheel as it falls, is allowed to fall through a distance of 1.5 m.

A 25.0 kg weight, arranged so it will turn a paddle wheel as it falls, is allowed to fall through a distance of 1.5 m. The paddle wheel stirs a container holding 500 g of water. Assuming all of the potential energy from the weight goes into thermal energy in the water, calculate the increase in temperature of the water. (Cwater = 4187 J/(kg C))

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