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Urgent!!!!!DAU CORONITA!!
Determina presiune exercitata de un cub cu masa de 500g si muchia de 10 cm


Răspuns :

p=G/S=mg/l²=0,5*10/(0,1)²=5/0,01=500Pa
P=F/A ,unde F forta,A arie F=500g Aria= aria bazei a cubului=l^2=100 cm patrati P=500g/100cm patrati P=5=0,0005 newtoni/metri patrati