Wyjaśnienie:
V = a^3
a = 2dm = 20cm
m = 2kg = 2000g
d = m/V
V ,= (20cm)^3= 8000cm^3
d = 2000g/8000cm^3= 0,25 g/cm^3
0,25g/cm^3 = 0,25 × 1000kg/m^3 = 250kg/m^3
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Wyjaśnienie:
V = a^3
a = 2dm = 20cm
m = 2kg = 2000g
d = m/V
V ,= (20cm)^3= 8000cm^3
d = 2000g/8000cm^3= 0,25 g/cm^3
0,25g/cm^3 = 0,25 × 1000kg/m^3 = 250kg/m^3