Give a general statement of the Second Law of Thermodynamics
What will be an ideal response?
The entropy of an isolated system never decreases. It either stays constant (reversible process) or increases (irreversible process).
or
Natural processes tend to move toward a state of greater disorder.
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The traditional theory of the formation of our galaxy cannot explain
a. the existence of the disk of the galaxy b. the fact that the oldest stars in the galaxy are not metal free. c. the spherical distribution of the globular clusters d. the difference in metal abundance of the population I and II stars. e. the existence of the nuclear bulge.
A ball that gains speed as it rolls down a hill experiences a
A) net torque. B) net force. C) both of these D) neither of these
Simple Pendulum: In 1851 Jean Bernard Leon Foucault demonstrated the rotation of the earth using a pendulum 11.0 m long, which was set up in the Paris Observatory. How long would it have taken for Foucault's pendulum to make one complete swing back to its starting point if g = 9.81 m/s2 at the observatory?
A. 6.65 s B. 5.63 s C. 1.79 s D. 2.12 s E. 2.58 s
A concave mirror will produce
a. only inverted images. b. real or virtual images. c. only virtual images. d. only real images.