A vector is 14.4 m long and points in a 133 degree
direction.
Find the x-component of the
vector.
X-component (m)

Explanation:

The x-component is found in the magnitude of the vector times the cosine of the angle.

and, to 3 sig dig,

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .