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23u---x%
40u---100%
x=23u*100%/40u
x=57,5%
2. Dane:
d=1,16 g/cm3
V=300cm3
Cp=15%
Szukane:
mr=?
ms=?
Obliczenia:
mr=d*V
mr=1,16 g/cm3*300cm3
mr=348g
ms=Cp*mr/100%
ms=15%*348g/100%
ms=52,2g