C- Sigma Waves, This is what my teacher used to get us to remember https://www.youtube.com/watch?v=bjOGNVH3D4Y
It transfers the electrical current from the point of contact on the lightning rod into the ground.
That's true. Displacement is measured between the start-point and
end-point, regardless of the route that's followed. So, for example,
the displacement of an object that's moving in a circle becomes zero
every time the object returns to the point on the circle where it started.
Answer:
They fold to create ridges and valleys perpendicular to the direction to which pressure is applied.
