Our solar system lies in the Milky Way's ________, about 30,000 light-years from the Galactic Center
A) globular cluster
B) bulge
C) satellite galaxy
D) disk
E) halo
D
You might also like to view...
Although we know less about dark matter in elliptical galaxies than in spiral galaxies, what does current evidence suggest?
A) Elliptical galaxies probably contain about the same proportion of their mass in the form of dark matter as do spiral galaxies. B) Elliptical galaxies probably contain far less dark matter than spiral galaxies. C) Elliptical galaxies probably contain far more dark matter than spiral galaxies. D) Unlike the broad distribution of dark matter in spiral galaxies, elliptical galaxies probably contain dark matter only near their centers.
What is the magnitude of a the vertical electric field that will balance the weight of a plastic sphere of mass that has been charged to -3.0 nC? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A) 6.9 × 106 N/C B) 7.8 × 105 N/C C) 1.5 × 106 N/C D) 2.1 × 106 N/C
Fiber optics has to do with:
a. light having fiber characteristics as well as wave and particle characteristics. b. the color of fabrics. c. string theory. d. none of the above.
Why doesn't the uncertainty principle affect our ability to follow the path of a baseball?
A) The uncertainty principle applies only to subatomic particles. B) The uncertainties in all the individual atoms within the baseball cancel each other out. C) The uncertainties in the position and momentum of the baseball are so small in comparison to its size and total momentum that they are unnoticeable. D) The exclusion principle says that large objects are excluded from the consequences of the uncertainty principle. E) The uncertainty principle does not have anything to do with following the path of a particle or an object.