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

Author Question: Almost all stars on the main sequence range from 0.1 to 15 solar radii. Indicate whether the ... (Read 82 times)

crazycityslicker

  • Hero Member
  • *****
  • Posts: 537
on: Jul 27, 2018
Almost all stars on the main sequence range from 0.1 to 15 solar radii.
 
  Indicate whether the statement is true or false

Question 2

What is meant by the event horizon?
 
  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

zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

When a mass has contracted to a certain radius, the Schwartzschild radius, gravity at its surface is so high that the escape velocity is the speed of light. The event horizon is the imaginary surface of a sphere with this radius. Even if the mass continues shrinking, anything passing inside this radius cannot escape the pull of gravity.


crazycityslicker

  • Hero Member
  • *****
  • Posts: 537
Reply #2 on: Jul 27, 2018
Thanks


zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Range of Motion of the Wrist and Hand Joints, Hyperextension and Flexion of the Wrist Range of Motion of the Wrist and Hand Joints, Hyperextension and Flexion of the Wrist
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth. False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
Main symptoms of AIDS Main symptoms of AIDS
Post–Main-Sequence Evolution of Low-Mass Stars Post–Main-Sequence Evolution of Low-Mass Stars
How Axis Tilt Affects the Intensity of Solar Radiation How Axis Tilt Affects the Intensity of Solar Radiation
Difference Between Solar and Sidereal Day Difference Between Solar and Sidereal Day
Video: Audiology

For a complete list of videos, visit our video library