Răspunsuri

2014-05-08T15:43:27+03:00
Pai mai intai afli volumul adica 2^{3} = 8 cm cubi =0.00008 m cubi
si dupa q= \frac{m}{V} => m = q*V= 800*0.00008=0.64 Kg 
2014-05-08T20:49:56+03:00
Vcub=l³=8cm³=0.000008m³
m=p*V=800kg/m³*0.000008m³=0.0064kg=6.4g