Question

Un motor termic are radamentu eta. 28,5%.ce lucru mecanic efectueaza el,daca consuma 6 kg de motorina? Va rog mult si schema su rezolvarea

Answer 1

η=$\frac{L}{Q}$
q=$\frac{Q}{m}$
4,4=$\frac{Q}{6}$ =>Q=4,4*6=26,4 MJ=26400000 J
0,285=$\frac{L}{26400000}$ =>L=0,285*26400000=7524000W