Quote Originally Posted by Juliebrenna View Post
Well 50J may go to Neptune......lol ultimately because heat is transferred off the ball from friction and is released into the atmosphere. Some of earths heat is then lost into space - and ultimately minute amounts may make it all the way to Neptune . As far as your last question - newtons 2nd law.
Does the second law explain why entropy only goes one way and not the other? Like why it's impossible for something colder to give energy to something hotter without work.