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

Author Question: What is the lifetime of a star of 0.1 solar masses and a luminosity of 0.01 that of the Sun? Assume ... (Read 52 times)

tingc95

  • Hero Member
  • *****
  • Posts: 556
on: Jul 27, 2018
What is the lifetime of a star of 0.1 solar masses and a luminosity of 0.01 that of the Sun? Assume the lifetime of the Sun is 10 billion years.
 
  A) 10 billion years
  B) 100 billion years
  C) 10 trillion years
  D) 10 million years
  E) This star will never start hydrogen fusion reactions because it is not massive enough.

Question 2

As of the time of the publication of the textbook, how many planets have been discovered using the Doppler method?
 
  A) 700 B) 7000 C) 70 D) 7


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jasonq

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


tingc95

  • Member
  • Posts: 556
Reply 2 on: Jul 27, 2018
:D TYSM

phuda

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

The Sun is the nearest star to Earth. The Sun is the nearest star to Earth.
The Geometry of a Total Solar Eclipse The Geometry of a Total Solar Eclipse
A Star with Three Planets A Star with Three Planets
Solar Granulation Solar Granulation
Spectral Line Motion in Binary Star Systems Spectral Line Motion in Binary Star Systems
Relative lifetime risk of schizophrenia Relative lifetime risk of schizophrenia
Video: DNA fingerprinting Animation

For a complete list of videos, visit our video library