Meg walks 5 blocks south and then turns around and walks 8 blocks back to the north. the distance that she walks is 13 blocks. what is her displacement?

Three blocks north of where she started.

explanation:

areas w steep slopes, west coast, rocky mountains, and appalachian mountains

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 .