Physics

Problem

2\,\text{kW}

water heater is used for

30\,\text{min}

. Calculate the electrical energy consumed, in kJ. a)

7.2\times10^{3}\;\text{kJ}

6.0\times10^{2}\;\text{kJ}

3.6\times10^{3}\;\text{kJ}

2.16\times10^{3}\;\text{kJ}