the unit for mass is kilogram
The correct answer is C the time to complete one orbit
Answer:

Explanation:
This is an exercise where you need to use the concepts of <em>free fall objects</em>
Our <u>knowable variables</u> are initial high, initial velocity and the acceleration due to gravity:



At the end of the motion, the <u><em>rock hits the ground</em></u> making the final high y=0m

If we <em>evaluate the equation</em>:

This is a classic form of <u><em>Quadratic Formula</em></u>, we can solve it using:




Since the <u><em>time can not be negative</em></u>, the <em>reasonable answer</em> is

D. Adding another base pair will re-arrange your DNA sequences and cause an insertion mutation. This will make your codons group of differently, and possibly give you a BAD mutation. However, sometimes the codons still make the same proteins as its supposed to, the mutation will NOT affect you.
Example:
THE BIG FAT CAT ATE THE RAT
Now, if i were to add a letter (X) to this and make the letters group up in three aka the codons:
THE XBI GFA TCA TAT ETH ERA T
As you can you can see, adding a base pair in a DNA insertion will usually have a negative effect, specifically a insertion mutation.