This topic contains a solution. Click here to go to the answer

Author Question: When a star collapses to half size, the gravitational field at its surface A) doubles. B) ... (Read 102 times)

Sportsfan2111

  • Hero Member
  • *****
  • Posts: 585
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
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B




Sportsfan2111

  • Member
  • Posts: 585
Reply 2 on: Jul 29, 2018
Gracias!


olderstudent

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Excellent

 

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

For a complete list of videos, visit our video library