[tex]Dane:\\P = 1800 \ W\\t = 10 \ min = 10\cdot60 \ s = 600 \ s\\Szukane:\\W = ?\\\\Rozwiazanie\\\\P = \frac{W}{t} \ \ |\cdot t\\\\W = P\cdot t\\\\W = 1800 \ W \cdot 600 \ s\\\\\boxed{W = 1 \ 080 \ 000 \ J = 1,08 \ kJ = 1,08 \ MJ}\\\\1 \ kJ = 1000 \ J\\1 \ MJ = 1 \ 000 \ 000 \ J[/tex]