Explanation:
because it doesn't depend upon other unit like kg meter and second
Answer:
Explanation:
Is megan like going to be ran over the question doesn't have enoght info
Answer:
19
Explanation:
The mass of an atom is found in the nucleus: number of protons + number of neutrons; 9 + 10 = 19
The mass number of fluorine is 19
Answer:
B
Explanation:
the exact and absolute age of a rock layer
Light travels at a speed of:

The distance between Mercury and Sun is

, so the time it takes is

if we want to convert this into minutes, keeping in mind that 1 min = 60 seconds, we should divide this value by 60: