Which of the following statements best describes the exclusion principle?
A) If a particle has a precisely defined position, it is excluded from having a precisely defined momentum.
B) The laws of quantum mechanics are excluded from applying to large objects made of many atoms.
C) Two fermions cannot occupy the same quantum state at the same time.
D) Two photons cannot be in the same place at the same time.
E) The laws of quantum mechanics are excluded from our common sense.
C
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What will be an ideal response?
Democritus said that, although we imagine many things, "in reality, there are only atoms and the void." This idea could best be classified as
A) witticism. B) stoicism. C) rationalism. D) idealism. E) materialism.
The second law of thermodynamics holds that:
a. matter can neither be created nor destroyed b. energy can neither be created nor destroyed c. whenever energy is transformed to another form, some is dispersed d. entropy decreases with time e. energy is the capacity to do work
During the hydrogen shell burning phase:
A) the star grows more luminous. B) the star becomes less luminous. C) helium is burning in the core. D) the core is expanding. E) hydrogen is burning in the central core.