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V- objetość
m- masa
V= 2cm*2cm*2cm = 8cm³
m= 0,216 N
d= m : V
d= 0,216N : 8cm³ =0,027 N/cm³ ~~~~> trzeba zamienić jednostke na kg/m³ ~~~~>
d= 0,027 N/cm³ *1000 = 2700 kg/m³
licze na naj... pozdro ;]