This topic contains a solution. Click here to go to the answer

Author Question: I observe a galaxy that is 100 million light years away. Which of the following do I see? A) the ... (Read 91 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
I observe a galaxy that is 100 million light years away. Which of the following do I see?
 
  A) the light from the galaxy as it is today, and it is redshifted
  B) the light from the galaxy as it was 100 million years ago, and it is redshifted
  C) the light from the galaxy as it is today, and it is blueshifted
  D) the light from the galaxy as it was 100 million years ago, and it is blueshifted
  E) Nothing: the galaxy lies beyond the cosmological horizon.

Question 2

Nothing in the universe can travel faster than ________.
 
  Fill in the blank(s) with correct word



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Smiles0805

  • Sr. Member
  • ****
  • Posts: 305
Answer to Question 1

B

Answer to Question 2

the speed of light




Capo

  • Member
  • Posts: 545
Reply 2 on: Jul 27, 2018
Excellent


dreamfighter72

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

For a complete list of videos, visit our video library