Practice 2.3

Question 1

If it takes Jupiter 13 years to orbit the Sun. How long (in years) will it take Jupiter to go once around the sky as viewed from Earth? 

Question 2
Suppose scientists discover a new mini planet just beyond Earth's orbit that takes 1.05 years to orbit the Sun. How long in years would it take this mini planet to move once all the way around our sky? 

 Question 3
If it takes Mars 2.5 years to orbit the Sun. How long (in years) will it take Mars to go once around the sky as viewed from Earth? 

Question 4
If it takes Venus 0.7 years to orbit the Sun. How long (in years) will it take Venus to come back to its original place in our night sky? 

Question 5
If it takes Mercury 0.21 years to orbit the Sun. How long (in years) will it take Mercury to come back to its original place in our night sky?