pomocy! świat fizyki str. 40 zad 4,5...dam naj!

[latex]1 g = 0,001 kg\1 kg = 1 000 g\1 cm^{3} = 0,000001 m^{3}\1 m^{3} = 1 000 000 cm^{3}[/latex] [latex]4.\19,30frac{g}{cm^{3}} = 19,39 *frac{0,001kg}{0,000001m^{3}}=19300frac{kg}{m^{3}}[/latex] [latex]5.\810frac{kg}{m^{3}} = 810*frac{1000g}{1000000cm^{3}} = 0,81frac{g}{cm^{3}}[/latex]