In the Standard Model of modern physics, the four fundamental forces of nature are known to be non-contact forces. The strong and weak interaction primarily deal with forces within atoms, while gravitational effects are only obvious on an ultra-macroscopic scale. Molecular and quantum physics show that the electromagnetic force is the fundamental interaction responsible for contact forces. The interaction between macroscopic objects can be roughly described as resulting from the electromagnetic interactions between protons and electrons of the atomic constituents of these objects. Everyday objects do not actually touch; rather, contact forces are the result of the interactions of the electrons at or near the surfaces of the objects.
does the concept of a contact force apply to both a macroscopic scale and an atomic scale?
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Answer: no

Docking is the removal of portions of an animal's tail. While docking and bobbing are more commonly used to refer to removal of the tail, the term cropping is used in reference to the ears. Tail docking occurs in one of two ways. The first involves constricting the blood supply to the tail with a rubber ligature for a few days until the tail falls off. The second involves the severance of the tail with surgical scissors or a scalpel. The length to which tails are docked varies by breed, and is often specified in the breed standard.
do boxers have to have their tails docked?
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Answer: no

Yum! Brands, Inc., or Yum! and formerly Tricon Global Restaurants, Inc., is an American fast food company. A Fortune 500 corporation, Yum! operates the brands Taco Bell, KFC, Pizza Hut, and WingStreet worldwide, except in China, where the brands are operated by a separate company, Yum China. Prior to 2011, Yum! owned Long John Silver's and A&W Restaurants.
is pizza hut and kfc the same company?
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Answer:
yes