Author Question: Luminosity class IV objects are known as ____________________. Fill in the blank(s) with correct ... (Read 76 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
Luminosity class IV objects are known as ___________________ _.
 
  Fill in the blank(s) with correct word

Question 2

None of the pulsars emit pulses of visible light because
 
  a. pulsars are too hot to emit visible light.
  b. pulsars contain black holes that won't let visible light escape.
  c. the gravitational field of a pulsar is so great that the visible light emitted is redshifted.
  d. pulsars are too far away for the visible light to be bright enough to be detected at Earth.
  e. A few pulsars do emit visible light pulses.



carojassy25

  • Sr. Member
  • ****
  • Posts: 299
Answer to Question 1

subgiants

Answer to Question 2

e



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

For a complete list of videos, visit our video library