Odpowiedzi

2009-09-21T19:05:47+02:00
V -> 2*2*2 = 8(cm)
d ->8,93 g/cm3
m -> d*V

8,93 g/cm3 * 8 cm = 71,44g
2009-09-21T19:09:00+02:00
A = 2cm
q = 8,93g/cm3

v =?
m =?

V = a*a*a
V = 2cm * 2cm * 2cm
V = 8 cm3

m = v * q
m = 8 cm3 * 8, 93g/cm3
m = 71,44g