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

Author Question: When a star collapses to half size, the gravitational field at its surface A) doubles. B) ... (Read 99 times)

Sportsfan2111

  • Hero Member
  • *****
  • Posts: 585
on: Jul 29, 2018
When a star collapses to half size, the gravitational field at its surface
 
  A) doubles.
  B) quadruples.
  C) increases eightfold.
  D) remains constant.

Question 2

Compared to the event horizon, the photon sphere of a black hole is
 
  A) nearer the singularity.
  B) farther from the singularity.
  C) at the same location.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kingfahad97

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


Sportsfan2111

  • Member
  • Posts: 585
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

zacnyjessica

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Relationship between winter rainfall and chuckwalla, Sauromalus, size Relationship between winter rainfall and chuckwalla, Sauromalus, size
star cluster NGC 6604 star cluster NGC 6604
This diagram shows a cross-section of a solar-type star. This diagram shows a cross-section of a solar-type star.
Field Garlic Field Garlic
A Model of Surface Dyslexia A Model of Surface Dyslexia
Population size, 1970 - 2050 Population size, 1970 - 2050
Video: The Vestibular System

For a complete list of videos, visit our video library