The Martian polar caps are composed of frozen
A. water and carbon dioxide.
B. water and sulfuric acid.
C. water and methane.
D. methane and carbon dioxide.
Answer: A
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The energy of a particle in the second EXCITED state of a harmonic oscillator potential is 5.45 eV. What is the classical angular frequency of oscillation of this particle?
(1 eV = 1.60 × 10-19 J, h = 1.055 × 10-34 J ? s, h = 6.626 × 10-34 J ? s) A) 3.31 × 1015 rad/s B) 2.08 × 1016 rad/s C) 4.97 × 1015 rad/s D) 6.95 × 1015 rad/s
The focal point of a satellite in orbit about the Sun is
A) inside the Sun. B) outside the Sun. C) both of these D) neither of these
The region of our solar system between Mercury and Mars has very few asteroids, while the region between Mars and Jupiter has many asteroids
Based on what you have learned, what is the most likely explanation for the lack of asteroids between Mercury and Mars? A) There were very few planetary leftovers in this region, because most of the solid material was accreted by the terrestrial planets as the planets formed. B) It was too hot for asteroids to form in this part of the solar system. C) Gravity was too weak to allow asteroids to form in this part of the solar system. D) All the asteroids that formed between Mercury and Mars later migrated to the asteroid belt between Mars and Jupiter.
Observer A sees a pendulum oscillating back and forth in a relativistic train and measures its period to be TA. Observer B moves together with the train and measures the period of the pendulum to be TB. These two results will be such that
A) TA > TB. B) TA = TB. C) TA < TB. D) TA could be greater or smaller than TB depending on the direction of the motion.