Top Posters
Since Sunday
6
o
5
5
b
4
s
3
j
3
b
3
m
3
K
3
g
3
L
3
w
3
New Topic  
tsk tsk
wrote...
Posts: 157
Rep: 0 0
A month ago

The Copernican system was no more accurate than the Ptolemaic system in predicting the positions of the planets because of a key factor that was unchanged from the Ptolemaic system. What was that factor?



The Copernican system assumed the Earth was at rest at the centre.



The Copernican system used elliptical planetary orbits.



The Copernican system used uniform circular motion.



The Copernican system assumed all planets orbited the Sun.

Textbook 
ASTRO

ASTRO


Edition: 3rd
Authors:
Read 22 times
1 Reply
Replies
Answer verified by a subject expert
chelzchelz
wrote...
Posts: 128
Rep: 0 0
A month ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

tsk Author
wrote...

A month ago
Thanks
wrote...

Yesterday
Correct Slight Smile TY
wrote...

2 hours ago
Good timing, thanks!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1214 People Browsing
Related Images
  
 698
  
 6061
  
 689
Your Opinion
Do you believe in global warming?
Votes: 422