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

Author Question: The center of our galaxy is believed to be occupied by the radio source known as ... (Read 76 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
The center of our galaxy is believed to be occupied by the radio source known as ___________________ _.
 
  Fill in the blank(s) with correct word

Question 2

What is the lifetime on the main sequence of a 2-solar-mass star compared to the approximately 10-billion-year life of our Sun? Pick the best answer.
 
  a. 1.8  1011 years
  b. 1.8  1010 years
  c. 1.8  108 years
  d. 1.8  106 years
  e. 1.8  103 years


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AaaA

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 27, 2018
Answer to Question 1

Sgr A
Sagittarius A

Answer to Question 2

c


joblessjake

  • Member
  • Posts: 555
Reply 2 on: Jul 27, 2018
:D TYSM

mohan

  • Member
  • Posts: 362
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Radio Views of Saturn Radio Views of Saturn
A Starburst Galaxy A Starburst Galaxy
Head-Tail Source NGC 1265 Head-Tail Source NGC 1265
Running time on 100-meter sprint for men and women master athletes increases with age. Source: Korho Running time on 100-meter sprint for men and women master athletes increases with age. Source: Korho
This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S
Two radio antennas are 130 m apart on a north-south line. The two antennas radiate in phase at ... Two radio antennas are 130 m apart on a north-south line. The two antennas radiate in phase at ...
Video: Studying the Left and Right Brain Independently

For a complete list of videos, visit our video library