Recent content by atc

Indeed. Your point is: the magnet act over the ball bearing, changing its trajectory and speed and kinetic energy, but also the ball act over the Earth through magnet, changing its speed, trajectory and so kinetic energy (respecting proportions, of course)? So, returning to my initial question...

OK. So what's happen then if, let say, a ball bearing having a speed enough high to pas near a magnet placed on a flat table, but not to stick on the magnet? The magnet will attract the ball and modify its speed and trajectory, isn't it?

Hello everybody! I was read in a web page that magnetic field act over the ferromagnetic objects in the same way gravitational field act over any material object, mean magnetic field is a potential field energy as gravitational field. (http://van.physics.uiuc.edu/qa/listing.php?id=432") As...