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 88 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?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

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?

People about to have surgery must tell their health care providers about all supplements they take.

Center of Mass of a Binary Star System Center of Mass of a Binary Star System
Spectral and photochemical properties of photoactivatable fluorescent proteins. Spectral and photochemical properties of photoactivatable fluorescent proteins.
Suture Use, Size, and Type of Material Suture Use, Size, and Type of Material
Basalt is the most common type of stone used in hot stone therapy. Basalt is the most common type of stone used in hot stone therapy.
Type of rocks Type of rocks
Video: Introduction to Human Immunodeficiency Virus (HIV)

For a complete list of videos, visit our video library