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

Author Question: Betelgeuse is the bright red star representing the left shoulder of the constellation Orion. All the ... (Read 47 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
on: Jul 27, 2018
Betelgeuse is the bright red star representing the left shoulder of the constellation Orion. All the following statements about Betelgeuse are true. Which one can you infer from its red color?
 
  A) It is much brighter than the Sun.
  B) Its surface is cooler than the surface of the Sun.
  C) It is much more massive than the Sun.
  D) It is moving away from us.

Question 2

Which of the following methods has been the LEAST successful in detecting extrasolar planets around other star systems?
 
  A) regular changes in the positions of the parent stars with respect to more distant stars as they move across the sky
  B) detection of Doppler shifts in the spectra of the parent stars
  C) detection of brightness changes in a star as a planet passes in front of it
  D) detection of reflected starlight


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ErinKing

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
Reply #2 on: Jul 27, 2018
Thank you!


ErinKing

  • Sr. Member
  • ****
  • Posts: 362
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Lungs: RUL = Right Upper Lobe, RML = Right Middle Lobe, RLL = Right Lower Lobe, LUL = Left Upper Lob Lungs: RUL = Right Upper Lobe, RML = Right Middle Lobe, RLL = Right Lower Lobe, LUL = Left Upper Lob
Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu
A series of two PET scans. A scan was done when the volunteer’s eyes were either open (left) or ... A series of two PET scans. A scan was done when the volunteer’s eyes were either open (left) or ...
Passive shoulder roll: mobilizing technique for the shoulder with recipient in supine position. Passive shoulder roll: mobilizing technique for the shoulder with recipient in supine position.
Apply circular fingertip friction on back, moving along spinal muscles from hip to shoulder and over ... Apply circular fingertip friction on back, moving along spinal muscles from hip to shoulder and over ...
Why Men’s Shirt Buttons Are On The Right While Women’s On The Left Why Men’s Shirt Buttons Are On The Right While Women’s On The Left
Video: Simple and Double Sugar

For a complete list of videos, visit our video library