Carnot Engine: An ideal Carnot engine extracts 529 J of heat from a high-temperature reservoir during each cycle, and rejects 225 J of heat to a low-temperature reservoir during the same cycle. What is the efficiency of the engine?
A. 0.57
B. 1.35
C. 2.35
D. 0.7
Answer: A
You might also like to view...
We should expect galaxies to collide fairly often because
a. they are large with respect to their separation distances. b. galaxies contain large amounts of neutral hydrogen. c. galaxies occur in clusters. d. a and c e. none of the above
Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a 30.0 degrees incline. The inclined surface has a coefficient of kinetic friction of 0.200. The vertically hanging mass is 6.00 kg and the mass on the incline is 4.00 kg. The acceleration of the 4.00 kg mass is (the initial velocity is zero)
A. 7.16 
B. 5.84
C. 2.98
D. 1.53
E. 0.00
Which is the most massive star?
A. Star of 0.5 solar masses B. Coolest possible main sequence star C. Type B main sequence star D. Type G main sequence star E. Hottest possible main sequence star
The angle or arc distance of a point on the celestial sphere from the zenith is called the ______________ angle
Fill in the blank(s) with correct word