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v = 1*1*1 = 1 dm3 = 0,001 m3
d = 920 kg/m3
wzor:
m = d*v
m = 920*0,001 = 0,92 kg
920kg/m3=920000g/1000000cm³
Skróćmy zera
0,92g/1cm³
Teraz policzymy wage
1dm³=1000cm³
0,92*1000=92000g=92kg