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Physics, 17.10.2020 14:01 trevionc0322

The graph below shows time versus temperature for water in a tank after the heater has been switched on. The heater is switched off at A on the graph. (A) The mass of water in the tank is 50kg. What is the amount of heat supplied by the heating coil in the first 20 minutes?

The graph below shows time versus temperature for water in a tank after the heater has been switche

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