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 61 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?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Photograph taken during a laparoscopic procedure. The fundus of the uterus is visible below the prob Photograph taken during a laparoscopic procedure. The fundus of the uterus is visible below the prob
The Sun is the nearest star to Earth. The Sun is the nearest star to Earth.
Right Brain vs. Left Brain Right Brain vs. Left Brain
Stretch shoulder in horizontal flexion by grasping at the forearm and reaching the entire arm across ... Stretch shoulder in horizontal flexion by grasping at the forearm and reaching the entire arm across ...
Pull-ups from shoulder to buttocks. (A) Move across the shoulder, fingertips between the ribs. (B) ... Pull-ups from shoulder to buttocks. (A) Move across the shoulder, fingertips between the ribs. (B) ...
Blunt percussion over the left costovertebral angle Blunt percussion over the left costovertebral angle
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library