A previous homeowner had cut this cable and left it sticking out of the floor (with a caddy surrounding it). Unfortunately I am unable to trace it in our drop ceiling in the basement because it's running between venting and the subfloor. What kind of wire is this, and is it safe to push back through the hole and just ignore it or do we need to do something to handle it properly?
white casing with greyish blue insulation and a copper wire surrounded by white padding maybe? Home was built in the 70s, but this was fed through flooring that was laid over existing floor sometime after construction.