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ro=m/V
ro=13/10
r-=1,3 g/cm*3
2)
ro=m/V
m=ro V
V=m/ro
V=28/1,5
V=18,6cm*3
Dane :
m = 13g
v = ( objętość jest w sześciennych)
Szukane:
d = m/v
d = 13g/ = 1,3 g/
Zad.2
Dane :
m = 28g
d =
Szukane :
v = m/d
v = 28g/ = ( w zaokrągleniu) 18,6
Proszę. (: