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A 20% efficient real engine
An inventor has developed a new, energy-efficient lawn mower
engine. He claims that the engine will run continuously for more
1 answer
81 views
An inventor has developed a new, energy-efficient lawn mower
engine. He claims that the engine will run continuously for more
1 answer
80 views
How does knowing that all engines waste some energy help engineers build a better engine?
answers: They will look for ways to
1 answer
asked by
unknown 2.0
23 views
A 20% efficient real engine is used to speed up a train from rest to 7.0 m/s. An ideal (Carnot) engine using the same cold and
0 answers
asked by
Anonymous
683 views
A 40%-efficient car engine accelerates the 1300 kg car from rest to 20 m/s How much energy is transferred to the engine by
1 answer
asked by
andrea
4,216 views
A heat engine is 20% efficient. If it loses 800 J to the cooling system and exhaust during each cycle, the work done by the
2 answers
asked by
Steve
1,139 views
4.28) A. Calculate the horsepower needed for a 1200 kg car to climb to an altitude of 1000 m from sea level in 1 hr.
B. If the
0 answers
asked by
Sean Francis C. Nocete
634 views
How much work can a 22 kW car engine do in 60 seconds if
It is 30% efficient It is 100% efficient
1 answer
asked by
Melissa
2,593 views
Why is it impossible for a heat engine to be 100% efficient?
a. Entropy always decreases in a heat engine b. Work cannot be done
1 answer
asked by
kricket
90 views
Why is it impossible for a heat engine to be 100% efficient?
A) Work cannot be done on a heat engine. B) Some heat is always lost
1 answer
asked by
Iwannaknow
165 views