Top Posters
Since Sunday
A
6
j
6
c
5
m
5
C
5
d
5
s
5
n
4
i
4
d
4
d
4
J
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
GollumOfOz GollumOfOz
wrote...
Go to Answer
Posts: 225
Rep: 4 0
6 years ago
A star is moving towards the earth with a speed at 90% the speed of light. It emits light, which moves away from the star at the speed of light. Relative to us on earth, what is the speed of the light moving toward us from the star?
A) 0.90c
B) c
C) 1.1c
D) 1.20c
E) 1.9c
Textbook 
Principles & Practice of Physics

Principles & Practice of Physics


Edition: 1st
Author:
Read 159 times
2 Replies
Replies
Answer verified by a subject expert
smith239smith239
wrote...
#1
Posts: 99
Rep: 34 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

GollumOfOz Author
wrote...
#2
6 years ago
Makes sense to me
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  798 People Browsing
 105 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 266
  
 185
  
 274
Your Opinion
What's your favorite math subject?
Votes: 315
Previous poll results: How often do you eat-out per week?