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Ответ дан
MenPelmen
Дано:
C=140 frac{Dg}{kg*C}
m=500g
Δ t=200C
-----
Q-?

Решение:
Q=CmΔt
m=500g=0,5kg
Q=140 frac{Dg}{kg*C} *0,5kg*200C=14000Dg=14kDg

Ответ: Q=14kDg


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