× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
s
5
g
5
K
5
o
5
g
5
o
4
k
4
s
4
I
4
k
4
j
4
o
4
Home Q & A Board Science-Related Homework Help Physics Astronomy
New Topic  
Rnaprh Rnaprh
wrote...
Go to Answer
Posts: 547
Rep: 1 0
6 years ago
Galaxies are classified into types solely on the basis of their color.
 
  Indicate whether the statement is true or false

Question 2

One of the most unexpected aspects of Mars' atmosphere is:
 
  A) that it is 95 carbon dioxide.
  B) that its troposphere changes altitude.
  C) that it is cloudless.
  D) that it contains water vapor clouds.
  E) that it has such a low density.

Question 3

Kirchhoff was the first to describe qualitatively the types of spectra we observe from luminous objects. Describe the three types and their sources.
 
  What will be an ideal response?

Question 4

Objects which have contracted, but are of too little mass to establish thermonuclear reactions in their cores, are ________, which slowly continue to cool.
 
  Fill in the blank(s) with correct word
Read 54 times
3 Replies
Replies
Answer verified by a subject expert
umwutumwut
wrote...
#1
Posts: 338
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Rnaprh Author
wrote...
#2
6 years ago
Mind blown, I've bookmarked this site on told my friends
wrote...
#3
6 years ago
Really appreciate that
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  904 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 4322
  
 362
  
 129
Your Opinion
What's your favorite math subject?
Votes: 315
Previous poll results: Who's your favorite biologist?