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 19 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
Excellent

bigcheese9

  • Member
  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Solar Eclipse Solar Eclipse
Artist's conception of the birth of a star within a dense molecular cloud. Artist's conception of the birth of a star within a dense molecular cloud.
A crescent Moon and "star" A crescent Moon and "star"
Yellow Star Grass Yellow Star Grass
How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
What Happens to Incoming Solar Radiation? What Happens to Incoming Solar Radiation?
Video: Burn Animation

For a complete list of videos, visit our video library