The pressure is highest in the lungs on complete exhalation.
The empty soda can is not sealed so air is free to enter and leave the can. As a result, pressure inside the can is the same as it is outside.
The can is designed to withstand the external air pressure. When a can is sealed, the pressure inside and the pressure outside are balanced. However, when the can is empty and open, the pressure inside and outside the can equalize, preventing the can from being crushed.
The empty soft drink can has a higher pressure inside compared to the lower pressure at higher altitudes. The pressure difference between the inside and outside of the can prevents it from collapsing.
vacuum
A vacuum is empty space with no air. It is a region where the pressure is significantly lower than atmospheric pressure, resulting in the absence of air or any other gas molecules.
The empty cardboard box exerts more pressure on the ground because its weight is concentrated on the bottom. When the cardboard is flattened for recycling, its weight is distributed over a larger area, reducing the pressure exerted on the ground.
In general any pressurized gas container is "empty" when the pressure inside is equal to ambient air pressure. There is still gas in the container, but not enough pressure to expell the gas. Medical oxygen tanks should never be allowed to go below 200psi. The tank is considered empty at this point and should be replaced.
When an empty water bottle is placed in a freezer, the air inside the bottle cools down and contracts, creating a lower pressure in the bottle compared to the external pressure. This pressure difference causes the bottle to collapse as the external pressure compresses the bottle inward.
Like this Normal rail: Iron/Empty/Iron Iron/Wooden/Iron Iron/Empty/Iron Powered rail: Gold/Empty/Gold Gold/Wooden/Gold Gold/Red/Gold Detector rail: Iron/Empty/Iron Iron/S Pressure/Iron Iron/Red/Iron Iron = Iron ingot Empty = Wooden = Wooden stick Gold = Gold ingot Red = Redstone S Pressure = Stone pressure plate
To empty an ashtray in a 1994 Crown Victoria you must remove the ashtray by applying forward pressure.
When an empty tank is filled with air, the air molecules move into the tank and exert pressure on the walls of the tank. This increases the air pressure inside the tank and causes the tank to become pressurized.
The air pressure is the same inside as outside the can.