× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
New Topic  
JohanaT16 JohanaT16
wrote...
Posts: 519
Rep: 0 0
6 years ago
You are located at 40 degrees south latitude on Earth and the northern hemisphere is experiencing winter. Days for you are short whereas nights for you are long.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Two white dwarf stars are the same size, but one has a surface temperature twice as hot as the other. The hotter star will radiate
 
  a. half as much energy per second as the cooler star.
  b. the same amount of energy per second as the cooler star.
  c. four times as much energy per second as the cooler star.
  d. sixteen times as much energy per second as the cooler star.

Question 3

An evening or morning star is a planet.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 4

If a light-emitting object is moving away from you, you observe its wavelengths to be ________ its wavelengths if it were at rest.
 
  a. longer than
  b. shorter than
  c. the same as
Read 49 times
2 Replies

Related Topics

Replies
wrote...
6 years ago
Answer to q. 1

FALSE

Answer to q. 2

d

Answer to q. 3

TRUE

Answer to q. 4

a
JohanaT16 Author
wrote...
6 years ago
God bless you! Helped my grade so much.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  882 People Browsing
Related Images
  
 142
  
 484
  
 194