Gregor Mendel is considered the "Father of Genetics" because of his work with pea plants.
By using Ohm's law, we can calculate the resistance of the wire. Ohm's law states that:

where V is the potential difference across the conductor, I is the current and R the resistance. Rearranging the equation, we get

Now we can use the following equation to calculate the length of the wire:

(1)
where

is the resistivity of the material
L is the length of the conductor
A is its cross-sectional area
In this problem, we have a wire of copper, with resistivity

. The radius of the wire is half the diameter:

And the cross-sectional area is

So now we can rearrange eq.(1) to calculate the length of the wire:
We can answer this one very quickly. From the <em>Law of Conservation of Energy</em>, we know that "Energy can't be created or destroyed.".
So that only leaves us one way to complete the sentence in this question:
"One form of energy can be <em>transformed into</em> another type of energy.
" <em>(B)</em>
:D HI YOUR ANSWER WOULD BE 8 NEWTONS TO DA RIGHT
22N to right + 14N to left