× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
j
3
s
3
j
2
J
2
e
2
n
2
t
2
d
2
b
2
t
2
J
2
b
2
New Topic  
Ojs123 Ojs123
wrote...
Posts: 474
Rep: 0 0
6 years ago
The least massive main-sequence stars have a/an _____ luminosity class and a/an _____ spectral class.
 
  Fill in the blank(s) with correct word

Question 2

The calculated Schwarzschild radius of a 2-Mo black hole is approximately
 
  a. 6 km.
  b. 4 km.
  c. 2 km.
  d. 12 km.
  e. 36 km.

Question 3

__________________ is/are caused by the interaction of light waves with the telescope's apertures and thus limit the detail visible in an image.
 
  Fill in the blank(s) with correct word

Question 4

The most massive main-sequence stars are the ________ spectral class and the ________ luminosity class.
 
  Fill in the blank(s) with correct word

Question 5

At extremely high densities and temperatures, electrons can be forced to fuse with protons. This reaction produces
 
  a. hydrogen.
  b. helium and energy.
  c. degenerate electrons.
  d. neutrons and neutrinos.
  e. large amounts of radio radiation.
Read 95 times
2 Replies
Replies
Answer verified by a subject expert
leahx3leahx3
wrote...
Top Poster
Posts: 592
Rep: 0 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Ojs123 Author
wrote...
6 years ago
Amazing, correctly answered
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  887 People Browsing
Related Images
  
 466
  
 326
  
 383
Your Opinion
What's your favorite math subject?
Votes: 559

Previous poll results: How often do you eat-out per week?