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 85 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
Wow, this really help

milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Observable Universe Before and After Inflation Observable Universe Before and After Inflation
Time Line of Human History From Upper Paleolithic Period to the Present Time Line of Human History From Upper Paleolithic Period to the Present
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it. In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
Healthier choices can be made when time is taken to read a nutrition label. Healthier choices can be made when time is taken to read a nutrition label.
Greet a First-Time Client With a Firm Handshake. Greet a First-Time Client With a Firm Handshake.
Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011 Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011
Video: Stroke volume - afterload definition & hypertension

For a complete list of videos, visit our video library