« previous next »

Author Question: If Star A is closer to us than Star B, then Star A's parallax angle is ________. A) fewer parsecs ... (Read 197 times)

newyorker26

  • Hero Member
  • *****
  • Posts: 536
on: Jul 27, 2018
If Star A is closer to us than Star B, then Star A's parallax angle is ________.
 
  A) fewer parsecs than that of Star B B) hotter than that of Star B
  C) smaller than that of Star B D) larger than that of Star B

Question 2

Why do rich clusters of galaxies contain a larger fraction of ellipticals than normal?
 
  What will be an ideal response?


recede

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

In the densest clusters, collisions happen frequently, tearing off the spiral arms and dissipating their material into the intergalactic medium at high temperatures.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Body plan of an echinoderm, as represented by a sea star. Body plan of an echinoderm, as represented by a sea star.
Star Map Southern Horizon Star Map Southern Horizon
U.S. Study on Identity Achievement With age, more young people are classified in identity achieveme U.S. Study on Identity Achievement With age, more young people are classified in identity achieveme
Men and women report having fewer days with stressors as they go from middle to older adulthood, and ... Men and women report having fewer days with stressors as they go from middle to older adulthood, and ...
Sunflower Sea Star, California. Sunflower Sea Star, California.
Sea Star Body Plan Sea Star Body Plan
Video: Fractures Animation

For a complete list of videos, visit our video library