The tube will not contain lots of air
It gets thinner (the pressure drops) and colder.
Toothpaste can explode in high elevations because the reduced air pressure can cause the air inside the toothpaste tube to expand, leading to a buildup of pressure. If the tube is already close to its bursting point, this increase in pressure can cause the toothpaste to burst out of the tube.
The pressure of the air outside the balloon decreases as it goes higher in altitude because the air becomes less dense at higher altitudes. This decrease in pressure causes the balloon to expand as the air inside the balloon pushes outward.
If an outside pressure is applied to a fluid, the pressure inside the fluid will increase. This is because the outside pressure adds to the existing pressure of the fluid, resulting in a higher overall pressure.
The atmospheric pressure go on falling. So the pressure in the balloon. It takes lot of height to get the pressure reduced. I mean, the reduction in the pressure can not be easily measured for short height.
When the air inside the can is pumped out, there is a decrease in pressure inside the can. The outside air pressure then pushes on the sides of the can, causing it to collapse. This happens because the higher pressure outside the can is not balanced by the lower pressure inside the can.
The pressure is higher.
There is no difference of the average local air pressure inside or outside of the headphone.
The air pressure inside the can is always higher than the air pressure outside the can. The air is compressed into the can along with the tennis balls.
When the water level is higher inside than outside the flask, the gas pressure in the flask is lower than the atmospheric pressure. This is because the weight of the column of water inside the flask creates an additional pressure on the gas inside, reducing its pressure relative to the atmospheric pressure outside.
When the water level is higher inside the flask than outside, the gas pressure in the flask would be lower than the atmospheric pressure. This is because the water exerts a partial vacuum on the gas in the flask, reducing its pressure compared to the external atmospheric pressure.
at higher altitudes the pressure of air is greater in our lungs as compare to the air pressure outside the body