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Q1.
The photograph below shows a coffee machine. The coffee machine uses an electric element to heat water.
The coffee machine heats water from 20 °C to 90 °C. The power output of the
coffee machine is 2.53 kW. The specific heat capacity of water is 4200 J/kg °C.
Calculate the mass of water that the coffee machine can heat in 14 seconds. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Mass = ____________________ kg (5)

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