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To make a cup of tea, an exhausted academic fills a kettle with 0.93-L of water at 13-°C and boils it. Her cup holds 250-mL of tea (ignoring the volume of the tea bag). The kettle heats the water until it boils, and stops heating 60.0-s after the water boils, during with time 0.10-% of the water has boiled away. How much total energy is used to make that cup of tea? (The specific heat of water is 4.186 J/g/°C and the latent heat of vaporisation is 2260-J/g.)

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