Which of the following is true during the equinoxes?
A. The Sun is on the ecliptic.
B. The Sun rises due east and sets due west.
C. The Sun is on the Celestial Equator.
D. All of these choices are correct.
Answer: D
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The transit method allows us in principle to find planets around
A) only a small fraction of stars that have planets. B) all stars that have planets of any kind. C) only stars of about the same mass and size as our Sun. D) only stars located within about 100 light-years of Earth.
Which of the following is not a vector quantity?
a. mass b. acceleration c. displacement d. velocity
If n moles of an ideal gas are compressed isothermally from an initial volume V1 to a final volume V2, what is the change in entropy?
A.
B.
C.
D.
E.
How many more times is the atmospheric pressure in Jupiter's core greater than the atmospheric pressure at Earth's surface?
A) 100 thousand B) 100 million C) 1 million D) 10 thousand E) 10 million