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

Author Question: Sirius is a star with spectral type A and Rigel is a star with spectral type B. What can we ... (Read 91 times)

jerry coleman

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
Sirius is a star with spectral type A and Rigel is a star with spectral type B. What can we conclude?
 
  A) Sirius has a higher core temperature than Rigel.
  B) Sirius has a higher surface temperature than Rigel.
  C) Rigel has a higher surface temperature than Sirius.
  D) Rigel has a higher core temperature than Sirius.

Question 2

As with stars, binary galaxy pairs are useful in finding their total mass.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

softEldritch

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

TRUE


jerry coleman

  • Hero Member
  • *****
  • Posts: 570
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


softEldritch

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

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

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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.

The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Switching of mating type in haploid yeast cells Switching of mating type in haploid yeast cells
The operation of a rotor-type oil pump. The operation of a rotor-type oil pump.
Comparison of Type 1 Diabetes to Type 2 Diabetes Comparison of Type 1 Diabetes to Type 2 Diabetes
Cordilleran-Type Mountain Building Cordilleran-Type Mountain Building
Video: Alzheimer's Disease

For a complete list of videos, visit our video library