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b=2,3 cm
c=0,09cm
V=abc=4,8cm*2,3cm*0,09cm=0,9936cm³
d=m/v=31g/0,9936cm³=32 g/cm³
m=31g
a=4.8mm=0.48cm
b=2,3mm=0.23cm
c=0,9mm=0.09cm
Szukane:
gęst.=?
Rozw.:
V=a*b*c
V=0.48cm*0.23cm*0.09cm
V=0.009936mm2
gęst.=m/V
gęst.=31g/0.009936cm3
gęst.= 3 119.96779g/cm3
Odp.:Gęstość wynosi 3 119.96779g/cm3.