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Un motor termic are randamentul = 28,5 %.Ce lucru mecanic efectueaza el , daca consuma 6 kg de motorina ? Ajutatima !!!

Răspuns :

η=[tex] \frac{L}{Q} [/tex]
q=[tex] \frac{O}{m} [/tex]
q=44000kJ
Q=m*q=6*44000=264000kJ
η=[tex] \frac{L}{Q} [/tex]
L=η*Q=0,285*264000=75240 kJ