« previous next »

Author Question: What do we mean by the event horizon of a black hole? A) It is the very center of the black hole. ... (Read 90 times)

Jramos095

  • Hero Member
  • *****
  • Posts: 528
on: Jul 27, 2018
What do we mean by the event horizon of a black hole?
 
  A) It is the very center of the black hole.
  B) It is the place where X-rays are emitted from black holes.
  C) It is the point beyond which neither light nor anything else can escape.
  D) It is the distance from the black hole at which stable orbits are possible.

Question 2

Describe the orbits of the Trojan asteroids.
 
  What will be an ideal response?


tjayeee

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

They move in Jupiter's orbit, but 60 degrees ahead or behind it.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

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?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

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?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Tri parti-colored (white, brown and black) guinea pig in its natural habitat. Tri parti-colored (white, brown and black) guinea pig in its natural habitat.
Labeling of black cohosh: (a) front label with general health claim Labeling of black cohosh: (a) front label with general health claim
Adam Kahn, Brockholes Visitor Center. Adam Kahn, Brockholes Visitor Center.
Combustion chamber volume is the volume above the piston with the piston at top dead center. Combustion chamber volume is the volume above the piston with the piston at top dead center.
The receptive fields of an on-center cell and an off-center cell. The receptive fields of an on-center cell and an off-center cell.
Criteria for Trauma Center Designation Criteria for Trauma Center Designation
Video: Egg and Sperm Formations in Animals Animation

For a complete list of videos, visit our video library