A fixed pulley changes the direction of the force on a rope or belt that moves along its circumference.
In order to create an electromagnet, you would wrap an insulated wire around a metal with ferromagnetic properties and apply electric current. Magnetic fields are made when entirely the electrons are turning in the same direction either as a natural phenomenon, in an artificially created magnet or when they are persuaded to do so by an electromagnetic field.
Answer:
First answer.
Explanation:
There may be a 5N force, but if the frictional force also equals 5N, than they cancel eachother out, resulting in the brick still staying still, as it is resting on a (perfectly) level surface, but any amount of force would make the brick move.
Stars give out heat and light due to continuous fusion and fission reaction of hydrogen and helium in it. These reactions release a tremendous amount of energy in the form of heat and light. helium atoms. During this process, huge amount of energy is released in the form of heat and light.
