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-m = 55 g = 0,055 kg
-C = 460 J/kg°C
-Δt = 90°-20° = 70°
Ditanya Q=?
Jawab= Q= m.c.Δt
= 0,055 kg . 460 J/kg°C.70°C
= 1771 J
=0,055kg×460×70
=25,3×70
=177,1 joule
maaf kalau caranya kurang dan pendek