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!!!!!VA ROG AJUTATI-MA ( !!!!!DAU CORONITA!!!!!! )
cub cu latura 4 cm sticla RO= 25 cm³​


Răspuns :

Răspuns:

v=l³=4³=64cm³

p=m/V=>m=pV=2,5*=160g=0.16kg

G=mg=0.16*10=1.6N

S=|²=4²=16cm²

p=G/S=1,6/16=0,1N/cm²