This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Compared to stars within the disk, halo stars a. orbit at random inclinations to the galactic ... (Read 167 times)

mia

  • Hero Member
  • *****
  • Posts: 564
on: Jul 27, 2018
Compared to stars within the disk, halo stars
 
  a. orbit at random inclinations to the galactic plane b. orbit at different speeds
  c. orbit with paths crossing d. All of the other choices are correct.

Question 2

Absorption lines due to interstellar gas
 
  a. are wider than the lines from stars because the gas is hotter than most stars.
  b. are narrower than the lines from stars because the gas has a lower pressure than stars.
  c. indicate that the interstellar medium contains dust.
  d. indicate that the interstellar medium is expanding away from the Sun.
  e. None of the other choices are correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

JYan

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

b


mia

  • Member
  • Posts: 564
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

patma1981

  • Member
  • Posts: 292
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Species-rich floras of chalk grassland compared to species-poor floras of acid soils. Species-rich floras of chalk grassland compared to species-poor floras of acid soils.
Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth
Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Off-Center Disk Off-Center Disk
Swabbing a Petri dish to spread apart colonies. Bacitracin disk is used to prove the presence or ... Swabbing a Petri dish to spread apart colonies. Bacitracin disk is used to prove the presence or ...
Video: EpiPen Animation (Part 2)

For a complete list of videos, visit our video library