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 63 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?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

An intra-aortic balloon pump increases circulation to the coronary arteries and decreases the worklo An intra-aortic balloon pump increases circulation to the coronary arteries and decreases the worklo
A Gas- and Dust-Rich Region of Orion A Gas- and Dust-Rich Region of Orion
Mass Loss by a Supermassive Star Mass Loss by a Supermassive Star
Anatomy of the heart. Remember: It is labeled right and left based on the patient’s perspective. Anatomy of the heart. Remember: It is labeled right and left based on the patient’s perspective.
Notice the small motor gear on the left drives a larger plastic gear (black), which then drives ... Notice the small motor gear on the left drives a larger plastic gear (black), which then drives ...
Stripping effleurage to shoulder as smoothing and transition technique. Apply with thumbs sliding ... Stripping effleurage to shoulder as smoothing and transition technique. Apply with thumbs sliding ...
Video: Humerus Adduction Animation

For a complete list of videos, visit our video library