A gasoline engine absorbs 2 500 J of heat and performs 1 000 J of mechanical work in each cycle. The amount of heat expelled in each cycle is
a. 1 000 J
b. 1 500 J
c. 2 000 J
d. 500 J
e. 3 000 J
B
You might also like to view...
A bridge is made with segments of concrete 50 m long. If the linear expansion coefficient is 12 × 10?6 (°C)?1, how much spacing (in cm) is needed to allow for expansion during an extreme temperature change of 150°F?
A. 10 B. 2.5 C. 7.5 D. 5.0 E. 9.5
When we speak of the large-scale structure of the universe, we mean ________
A) the structure of any large galaxy B) the overall shape of the observable universe C) the overall arrangement of galaxies, clusters of galaxies, and superclusters in the universe D) the structure of any individual cluster of galaxies
If a mile of 24-gauge copper wire has a resistance of 0.14 k? and the resistivity of copper is 1.7 × 10^?8 ? / m, what is the diameter of the wire? (1 mile = 1.6 km)
a. 0.40 mm b. 0.50 mm c. 0.63 mm d. 0.80 mm e. 0.25 mm
A triangle has sides of length 7 cm and 11 cm. If the triangle is a right triangle, which of the following could be the length of the third side, to the nearest centimeter?
a. 11 cm b. 8 cm c. 16 cm d. 17 cm e. 7 cm