does this walmart carry samsung galazy s5 charging cable (with or without the adapter)?

Try Amazon, Ebay or Fry's Electronics although I doubt they'll carry it. I think Ebay may be your best bet.

What you're looking for is a cable with a USB 3.0 Type B. Try looking at their website or calling your nearest store. Probably not, since the last several Galaxy phones haven't used that type of charging cable. Your best bet would likely be an electronics store or Amazon.

Yes

Best Buy probably has it

I would try Amazon or sometimes you can find a temporary charge at your local convenient store