Large instruments produce low sounding notes while small instruments produce high sounding notes, this is because the size of the instruments is connected to the of the sound wave. *

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 .

iron would move it is magnetic there is a mag field around the current in the wire

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

dang that balls went far