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 88 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?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Bones of the chest and shoulder Bones of the chest and shoulder
Bright rooms Bright rooms
The asymmetry of facial expressions. Notice that the expressions are more obvious on the left side ... The asymmetry of facial expressions. Notice that the expressions are more obvious on the left side ...
Apply lotion to the arm from hand to shoulder. Use moderate pressure. Feel the quality of the ... Apply lotion to the arm from hand to shoulder. Use moderate pressure. Feel the quality of the ...
Tummy rock. Standing on the recipient’s right side, rest your left hand on the forehead and your ... Tummy rock. Standing on the recipient’s right side, rest your left hand on the forehead and your ...
Video: Phases of the Female Reproductive Cycle - Hormonal regulation

For a complete list of videos, visit our video library