The principle stating that the work output of a heat engine must be less than its total energy input is called
A) the second law of thermodynamics.
B) the kinetic principle.
C) the first law of thermodynamics.
D) the law of conservation of energy.
E) Nonsense--there is no such physical law.
A
You might also like to view...
Over withdrawal of groundwater causes ground subsidence in areas
A) of karst topography.
B) underlain by unconsolidated sediments.
C) underlain by consolidated sediments.
D) all of these
A swimmer heading directly across a river that is 200 m wide reaches the opposite bank in 6 min 40 s. During this swim, she is swept downstream 480 m. What is the speed of the current?
A) 0.50 m/s B) 0.80 m/s C) 1.2 m/s D) 1.4 m/s E) 1.8 m/s
A thin ribbon of a silver alloy 2.00-cm wide and 0.015 0-mm thick carries a current of 6.98 A perpendicular to a magnetic field. The Hall voltage is found to be 1.24 × 10^?4 V when the magnetic field is 2.50 T. Calculate n, the number of charge carriers per cubic meter
The speed of FM waves will be observed to be c = 2.9979 × 10^8 m/s when the antenna emitting the waves is
a. at rest relative to the receiving antenna. b. moving to the right of the detecting antenna at 0.5 c. c. moving to the left of the detecting antenna at 0.5 c. d. moving as described in (a), (b) or (c) above. e. moving at 2.9979 × 10^8 m/s.