Which of the following choices best corresponds to what is required by the second law of thermodynamics for any process taking place in an isolated system?
a. entropy decreases
c. entropy increases
b. entropy remains constant
d. entropy equals work done on the system
C
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A composite volcano is formed by
A) successive flows of fluid basaltic lava. B) a mixture of rock and lava. C) alternating layers of lava, ash, and mud flow debris. D) the accumulation of ash, cinders, and rock debris.
As a coil is removed from a magnetic field an emf is induced in the coil causing a current to flow within the coil. This current interacts with the magnetic field producing a force which
A) acts at right angles to the coil's motion. B) acts in the direction of the coil's motion. C) causes the coil to tend to flip over. D) acts in the direction opposite to the coil's motion.
Single-Slit Diffraction: In a single-slit diffraction experiment, the width of the slit through which light passes is reduced. What happens to the width of the central bright fringe in the resulting diffraction pattern?
A. It stays the same. B. It becomes narrower. C. It becomes wider.
Based on the video, which Venus phase would be impossible to see (from Earth) if Venus orbited Earth as described in Ptolemy's Earth-centered model?
a. crescent on the right side b. gibbous (nearly full) c. new d. crescent on the left side