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intrebare la fizica: (clasa a 6 a)


m=?
l=2cm
Vcub=?
ROaq=10,5 g/cm




!!!Pls HELP!!!


Intrebare La Fizica Clasa A 6 Aml2cmVcubROaq105 Gcm Pls HELP class=

Răspuns :

Răspuns:

V cub = l×l×l

V cub = 2 × 2 × 2 = 8 cm^3

£ = RO

£ = m/V

m = £ × V cub

m = 10.5 × 8

m = 84 g