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Humans cools down through the evaporation of sweat or liquid intake. The average specific heat (4)f the human body is Cbody = 3500 J kg¹¹ °C¹¹. If a 91 kg athlete wants to cool their body by anverage of 1 °C: c_{\text {water }}=4200 \mathrm{~J} \mathrm{~kg}^{-1}{ }^{\circ} \mathrm{C}^{-1}, L_{f}=3.33 \times 10^{5} \mathrm{~J} \mathrm{~kg}^{-1} How much sweat must evaporate to produce this cooling effect by itself (b)How much water must be consumed at 2 °C to produce this cooling effect by itself

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