Depends on the vehicle and type of tire.
I do not understand your question. You air your tires up to the exact PSI listed in your owner's manual and on the driver's door post. Too much air pressure in the tires will decrease the amount of tread on the pavement and give you less surface to brake with. The tires will be harder and tend to slide more.
depends on how much air in tires
44 psi
No, you don't have to. Air is air, no such thing as summer or winter air just check and maintain the proper air pressure required for your vehicle.
too much air in the tire
Anything above the required pressure for that vehicle is too much. If the vehicle plate recommends 35, then 40 is too much. Higher pressures will damage the tire and increase it's chances of coming off the rim.
The recommended air pressure for bicycle tires is usually printed on the sidewall of the tire. It is important to inflate the tires to the specified pressure to ensure optimal performance and prevent damage.
30 psi
as much as you want or whatever the tire recommends
32psi
It is what fills the tires, in the form of air.
Most cars take around 32-35psi