Answer:
You add a bar till the 2 for the 9-10. You add bars till 6 for the 11- 12. You add bars till 8 for the 13-14. You add bars till the 4 for the 15-16.
Step-by-step explanation:
The formula for this ( horizontal circular orbit with the origin at the center) is
L = mvr
Answer: LAST OPTION
Step-by-step explanation:
The complex numbers shown have the form:

By definition, the distance can the distance of the complex number from the origin on the complex plane can be calculated with the formula shown below:

Substitute values of each option. Then:
1) 
2) 
3) 
4)
(CORRECT OPTION)
Answer:
9 miles an hour
Step-by-step explanation:
9