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

Author Question: The lookback time of the cosmological horizon is A) the Big Bang. B) the age of the universe. ... (Read 143 times)

Pineappleeh

  • Hero Member
  • *****
  • Posts: 585
on: Jul 27, 2018
The lookback time of the cosmological horizon is
 
  A) the Big Bang.
  B) the age of the universe.
  C) 1 billion years.
  D) 10 billion years.

Question 2

While examining the spectrum of a galaxy you find all the hydrogen lines are shifted to longer wavelengths. This galaxy is
 
  A) moving away from us.
  B) moving towards us.
  C) expanding explosively.
  D) blue shifted.
  E) not forming new stars.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kaykay69

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Pineappleeh

  • Member
  • Posts: 585
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

mammy1697

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Foamy Structure of the Universe Foamy Structure of the Universe
If you want to show differences between items at the same time, a bar graph is more effective than a If you want to show differences between items at the same time, a bar graph is more effective than a
When young infants hold objects for a long period of time they eventually become habituated to them. When young infants hold objects for a long period of time they eventually become habituated to them.
Men and women work the same number of hours a week, but men spend more time on paid work, and women ... Men and women work the same number of hours a week, but men spend more time on paid work, and women ...
Apply circular friction and direct pressure to suboccipital muscles one side at a time.Turn head to ... Apply circular friction and direct pressure to suboccipital muscles one side at a time.Turn head to ...
A time map of the genes studied in the experiment A time map of the genes studied in the experiment
Video: Interview with Person having Obsessive Compulsive Disorder

For a complete list of videos, visit our video library