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

Author Question: What causes X-ray bursters? A) The binary companion of a neutron star spirals in and combines ... (Read 155 times)

FButt

  • Hero Member
  • *****
  • Posts: 519
on: Jul 27, 2018
What causes X-ray bursters?
 
  A) The binary companion of a neutron star spirals in and combines with the neutron star.
  B) The mass of an accreting neutron star passes a critical threshold between 2 and 3 Msun and explodes.
  C) Helium fusion, which occurs when the thin layer of accreted material on a neutron star reaches 100 million K
  D) The rapid rotation of the neutron star causes it to fly apart.

Question 2

Objects in the Kuiper belt
 
  A) are in random orbits at all inclinations to the ecliptic.
  B) are the sources of long-period comets.
  C) lie beyond the orbit of Neptune, and close to the ecliptic.
  D) are dense, like the iron meteorites.
  E) lie beyond the orbit of Neptune and perpendicular to the ecliptic.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gcook

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

C


FButt

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


gcook

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

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?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Star Map Star Map
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Center of Mass of a Binary Star System Center of Mass of a Binary Star System
Spectral Line Motion in Binary Star Systems Spectral Line Motion in Binary Star Systems
Jets Created by a Black Hole in a Binary System Jets Created by a Black Hole in a Binary System
Which of the following reactions correctly shows the transmutation of an element by neutron ... Which of the following reactions correctly shows the transmutation of an element by neutron ...
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library