Author Question: If all the dark matter in the Universe were to be, somehow, instantaneously removed, which of the ... (Read 46 times)

pane00 · **on:** Jul 27, 2018

If all the dark matter in the Universe were to be, somehow, instantaneously removed, which of the following would not happen?

A) The Solar System would fly apart.
B) The Milky Way would fly apart.
C) Clusters of galaxies would fly apart.
D) The Universe would expand forever.
E) all of the above

Question 2

Which of the following does not accurately describe what we observe toward the Galactic center?

A) at radio wavelengths, we see giant gas clouds threaded by powerful magnetic fields
B) at infrared wavelengths, we see a massive stellar cluster
C) at optical wavelengths, we see a cluster of old, red stars
D) at X-rays, we see faint emission from an accretion disk around a black hole