So far, beyond the solar system the exoplanets found have been mostly:
A) large jovians orbiting solar-type stars about where our jovians are found.
B) large jovians with terrestrial-type orbits.
C) terrestrials very close to their star, and transiting its disk.
D) terrestrials with very elongated, distant orbits like comets.
E) brown dwarfs much more massive than Jupiter.
B
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Index of Refraction: The index of refraction of a certain glass is measured to be 1.5. What is the speed of light in that glass? (c = 3.0 × 108 m/s)
A. 1.0 × 108 m/s B. 2.0 × 108 m/s C. 3.0 × 108 m/s D. 4.0 × 108 m/s E. 5.0 × 108 m/s
When the distance between a pair of stars decreases by half, the force between them
A) decreases by one-quarter. B) decreases by one-half. C) increases to twice as much. D) increases to four times as much. E) stays the same.
The force on your left palm is __________ the force on your right palm
a. 1/4 b. 1/2 c. equal to d. 2 times e. 4 times
According to the standard model of elementary particle physics, there are six flavors of quarks, each of which comes in three colors
Indicate whether the statement is true or false