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

Author Question: What can be said with certainty about a red star and a blue star? A) The red star is closer to ... (Read 107 times)

Wadzanai

  • Hero Member
  • *****
  • Posts: 528
on: Jul 27, 2018
What can be said with certainty about a red star and a blue star?
 
  A) The red star is closer to Earth than the blue star.
  B) The red star is more massive than the blue star.
  C) The blue star has a greater proper motion than the red star.
  D) The blue star is hotter than the red star.
  E) The red star has a greater radial velocity than the blue star.

Question 2

The instability strip shows that not all main-sequence stars are, in fact, stable.
 
  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

diana chang

  • Sr. Member
  • ****
  • Posts: 288
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

FALSE


Wadzanai

  • Member
  • Posts: 528
Reply 2 on: Jul 27, 2018
Gracias!

sarah_brady415

  • Member
  • Posts: 328
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Your heart beats over 36 million times a year.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

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?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Eastern blue-tongued lizard Eastern blue-tongued lizard
Blue Ringed Octopus Blue Ringed Octopus
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth. False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
Circumpolar Star Trails Circumpolar Star Trails
Blue in a range of values Blue in a range of values
The Eye and the Eye Wall—a Closer Look The Eye and the Eye Wall—a Closer Look
Video: Chromosome structural organization/ Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library