It's done now for ride quality but manufacturers will get away from that soon. There is a new airless honeycomb design being tested and it looks very promising
the car tire will be flat and the tractor tire not.
On the tire where you put the air in the tire.
Most tires are supported by air pressure alone, not the tire, the tire controls things but is a casing to hold the air that hold the car up.
PSI is the abbreviation used to denote tire pressure. Tire pressure refers to how much air should be inflated into a car's tires.
it has a cap that seals in the air
Tire pressure should be adjusted after a period of driving. The air in a tire will heat and expand as you drive on it. Therefore, to prevent overpressurization, tire air pressure should be adjusted only after a period of driving.
Air pressure is the same throughout the tire.
A tire does not fill any faster with the weight of the car on it. Air is pressurized and fills the tire with the same speed whether it is on or off of the car.
You can inflat a tire on a car without taking the tire off by simply pressing the valve that is at the side of the tire that is used in pumping air in the tire.
It can be a cause.
the friction between the tire & the surface your driving on causes heat and which heats the tire + the air...
When you drive the the tires create friction with the road when they rotate. Friction creates heat. The air molecules in the tire heat up and expand. Since the tire is rubber and sealed the tire expands with the pressure of the hot air.