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Ciepło topnienia wolframu- 190000 J/kg
Ciepło dostarczone- 1900 kJ = 1900000 J (1 kJ=1000 J)
Szukane:
m=?
Obliczenia:
m=1900000 J /190000 J/kg
m= 10 kg
Odp: Masa wolframu to 10 kg