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

Author Question: Open clusters and young stars are generally found only in the disk of the Milky Way and not in the ... (Read 23 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Jul 27, 2018
Open clusters and young stars are generally found only in the disk of the Milky Way and not in the halo.
 
  Indicate whether the statement is true or false

Question 2

How has the chemical composition of the Sun changed in the last 4.5 billion years? How will this affect its future?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

reelove4eva

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

The core was almost all hydrogen to start with, but with fusion reactions the helium content of the core has increased. As a main-sequence star, it will continue to brighten slowly for the next five billion years, then when the core is dominated by helium, the core will contract and heat up, forcing the photosphere outward and swelling it up into a red giant, probably burning up the Earth in the process.


jeatrice

  • Member
  • Posts: 543
Reply 2 on: Jul 27, 2018
Excellent

sarah_brady415

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

The Dugong is an endangered species; the largest remaining population is found in Australian waters The Dugong is an endangered species; the largest remaining population is found in Australian waters
The cotton-top tamarin (Saguinus oedipus), also known as the Pinche tamarin, is a small New W The cotton-top tamarin (Saguinus oedipus), also known as the Pinche tamarin, is a small New W
Reactions of Young Men and Women on Fasting Reactions of Young Men and Women on Fasting
An open fracture. An open fracture.
Free Energy Rules: The Second Law in Open Systems Free Energy Rules: The Second Law in Open Systems
Attachment of gene clusters to the nuclear matrix Attachment of gene clusters to the nuclear matrix
Video: Mutations and translation

For a complete list of videos, visit our video library