Recent content by new_scientist

A larger magnet needs more energy because it contains more electrons that spins in different directions. But potential energy is not only about the magnet strength or size it is also proportional to the distance from the magnet.

The only added energies to this system are the kinetic energy the ball gains and the heat energy Which demagnetized the magnet if the ball is thrown to very far distance with very huge kinetic energy it will gain very huge potential energy, how it is possible that the heat energy added to the...

Hello! Thanks Let's say the ball reaches 10^40 meters from the magnet, the kinetic energy I should apply to put it at that distance is relatively huge, now if I heat the magnet then the heat energy must be huge as well so that we cancel this huge potential energy. However at the same time there...

Suppose you stand on a spherical permanent magnet in space and you hold an iron ball in your hand, you can neglect the gravity force by this magnet mass. You stand and throw the iron ball upwards with some kinetic energy, the ball will eventually stops at some height because it is attracted by...