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 75 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
YES! Correct, THANKS for helping me on my review

xthemafja

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

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?

The average adult has about 21 square feet of skin.

Radio Radio
Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19 Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19
The proportion of obese and extremely obese adults in the United States has increased over the past The proportion of obese and extremely obese adults in the United States has increased over the past
Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward
Santiago Calatrava, Port Authority Trans Hudson (PATH) station, World Trade Center site. Santiago Calatrava, Port Authority Trans Hudson (PATH) station, World Trade Center site.
Avocados are a good source of pantothenic acid, dietary fiber, vitamin K Avocados are a good source of pantothenic acid, dietary fiber, vitamin K
Video: Exocytosis - secretion

For a complete list of videos, visit our video library