Answer: r^-1
Explanation:
V = (k × Q) / r, where V is electric potential, k is constant and r is distance from charge.
Since Q will not change, it can be considered a constant too.
So, we can write V ∝ 1/r
which is same as V ∝ r^-1
It is correct! good job :)
Answer:
I think it's the most important part in this
The speed would be in a decimal? Or do you want it in a fraction?
Answer:
The focal length of a lens is refers to the distance from the center of the lens to the principal foci.
