Yes, they have already built trains which are held above the track by magnetic fields, they are called Maglev trains(magnet levitation).
The force of buoyancy, which is caused by the difference in the densities of an object and the fluid it is placed in, makes people float. When the buoyant force is greater than the weight of the person, they will float on the surface of the water.
The upthrust force needed to float on water is equal to the weight of the person (or raft) and any additional load they are carrying. As long as the upthrust force is greater than or equal to the total weight of the person and the raft, they will float on the water.
I can make a iron nail float. Simply melt some lead and the iron will float on top of the lead. Your question seems to be with regard to how do Boats float and the answer is Bouyancy. The Boat displaces a volume of water and if the weight of the displaced water is less than the weight of the boat, the boat will float.
A magnetic force is the exertion of a force on a magnetic object due to the presence of a magnetic field. The strength and direction of the magnetic force depend on the strength and orientation of the magnetic field. In essence, a magnetic field produces the magnetic force that acts on magnetic objects within its influence.
Magnetic force is the force exerted between magnetic poles, producing magnetization of force, either of attraction or of repulsion.
Magnetic force is the force experienced by a magnetic object when placed in a magnetic field. The strength and direction of the force depend on the characteristics of the object and the field. The magnetic field is the region around a magnetic object or current-carrying conductor where another magnetic object experiences a magnetic force.
Typically, an electric current creates a magnetic force. Also, magnetic domains aligned correctly and properly can cause a magnetic force.
A magnet can float over a solid that is non-magnetic or weakly magnetic, such as wood, plastic, or glass. This is because these materials do not interfere significantly with the magnetic field produced by the magnet, allowing it to hover or float above them.
Magnetic force is a non-contact force. It can also be described as a force of 'Attraction' or 'Repulsion'.
The force that affects only objects with magnetic domains is the magnetic force. This force arises from the interactions between the magnetic fields of objects with magnetic domains and can attract or repel objects with magnetic properties.
Yes it is
The magnetic force of a magnet is called magnetism.