An electric heater supplies 13500 joules of heat energy to a metal block of mass \(0.5kg\). The temperature of the block rises from \(20^{\circ}C\) to \(80^{\circ}C\) during the heating process.
Different substances require different amounts of energy to gain temperature. It takes less energy to raise the temperature of a 1 kg block of lead by 1°C, than it does to raise the temperature of 1 ...
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