The rotating paddles to raise the water temperature

Reference no: EM13560510

Suppose a modified Joule's apparatus contains 2.8 kg of water. instead of the ropes having weights on the end, the apparatus is turned by exerting a constant horizontal force of 40 N on a heavy cord wrapped around the axle. How far would the cord have to be pulled in order for the rotating paddles to raise the water temperature by 1.0°C?

Reference no: EM13560510

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