Answer:
There are two methods generally used to magnetize permanent magnets: static magnetization and pulse magnetization.
Answer:
méthode if séparation muddy water
Yes. Kinetic energy is a form of mechanical energy and friction will turn that kinetic energy into heat.
Answer: 8000N
Explanation: since it is frictionless that means it has 100% efficiency therefore the mechanical advantage is 1 meaning the load equals to the effort
Charge is actually either excessive number or electrons or shortage of them.
as you can't destroy the electron or create it - you can't destroy or create charge
