Odpowiedź :
[tex]dane:\\m = 4 \ kg\\Q = 1240 \ J\\szukane:\\c_{t} = ?\\\\c_{t} = \frac{Q}{m}\\\\c_{t} = \frac{1240 \ J}{4 \ kg}\\\\\underline{c_{t} = 310\frac{J}{kg}}[/tex]
[tex]dane:\\m = 4 \ kg\\Q = 1240 \ J\\szukane:\\c_{t} = ?\\\\c_{t} = \frac{Q}{m}\\\\c_{t} = \frac{1240 \ J}{4 \ kg}\\\\\underline{c_{t} = 310\frac{J}{kg}}[/tex]