Compared to the size of its nucleus, the size of an atom is about
A) a hundred times greater.
B) ten times greater.
C) one hundred thousand times greater.
D) the same.
E) a thousand times greater.
C
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The sequence OBAFGKM orders the stars in decreasing temperature and decreasing mass.
Answer the following statement true (T) or false (F)
A harmonic wave has a wavelength of 2.0 m and a frequency of 5.0 Hz. What is the speed of the wave?
A) 10 m/s B) 0.40 m/s C) 0.50 m/s D) 0.10 m/s E) 2.5 m/s
Which statement is true about asteroids? a. All asteroids are found in the asteroid belt between Mars and Jupiter. b. Asteroids are also called dwarf planets
c. Asteroids have an irregular shape and are battered by impact cratering. d. All asteroids have bright, reflective surfaces. e. Asteroids originated from older moons.
On a clear night when an observer in Los Angeles sees a first quarter Moon an observer in London would see
a. a full moon. b. a first quarter moon. c. a new moon. d. a third quarter moon. e. any of the above, depends on the time