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the pressure is high out side the plane because the air moves around quickly.
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A partially inflated balloon is released from the ground level and becomes larger as it rises in the atmosphere?
It is true that it will become larger as it risses in the atmosphere. This is because the pressure surrounding the balloon decreases, so the pressure inside the balloon wants to equalise with the outside pressure. This causes the balloon to expand as the inside air is trying to get out. That's why things get 'sucked out' of a plane if there if someone opens the door at 30,000 feet, the cabin pressure is trying to equalise by removing the objects and air inside it.
When an aeroplane flies its doors and windows are completely sealed.why we are not allowed to open windows even slightly?
A modern high flying aircraft has a pressurised cabin, so that the passengers can breath normally. If a window was to suddenly break, the air pressure inside would rush out of the broken window as the air pressure in the atmosphere outside to plane is very much less. If this was to happen, oxygen masks automatically fall from the ceiling so the passengers will be able to breathe. Otherwise, the pilot would be forced to descend rapidly to a lower altitude before the passengers blacked out due to lack of air.
What is a disadvantage of the incline plane?
* effort needs to move over a greater distance
Can a simple inclined plane have a mechanical advantage less than one?
The mechanical advantage of an inclined plane is the ratio of its length to the height of its lift. At 45 degrees, this ratio is equal to one. Less than 45 degrees and it is greater than one, more than 45 degrees, and it it less than one. So the answer is yes.
What is the control in the paper plane experiment?
what can be the constant in the paper plane experiment
Why can't you open a window on a plane?
The pressure is much less outside the plane and opening the window would cause a rapid movement from high pressure inside to low pressure outside and suck things out of the plane window.
Why ink spil out from pen in the aero plane?
Because as altitude increases, air pressure decreases. As the plane rises, the air pressure inside the pen is higher than outside it causing the ink to spill out.
What Happens if a Plane Goes Higher Than it's Designed To?
As the air pressure outside the aircraft decreases, & the air pressure inside the aircraft remains the same, it remains very high inside the aircraft in comparison to the outside, so in the end, the fuselage will explode apart, because the air pressure outside is not enough to counter act it & push against the force of the air pressure inside the aircraft which is pushing outwards.
Why do your ears hurt during take off and landing?
The pressure outside of your eardrum in the plane changes as the plane goes up or comes down - this causes pain because the pressure behind your eardrum is either higher or lower than the pressure inside the plane.
Sweets are given to the passangers before the plane takes off the ground?
Basically, when the plane takes off, you gain altitude very quickly. This gain in altitude causes a decrease in pressure because the weight of the atmosphere above you decreases. The inner ear is highly sensitive to pressure changes and when the pressure around you drops, the pressure being exerted from the inside of your ears will be greater than that around you causing your ear drums to 'pop'. The action of swallowing and sucking on the sweet will constantly force your ear drums open so that you will constantly equalize the pressure inside and outside your ear.
Why are air plane cabins pressurized?
Outside the plane is way less pressure and less air to breath. If inside the plane was the same pressure as the outside, people might die depending on how high the plane is. ***************************************************************************** FAA law mandates an un-pressurized aircraft the pilot and co-pilot must wear oxygen masks at or above 12,000 feet ASL altitude. Hypoxia sets in with no warning and no symptoms.
Why does water boil at 212 degrees in am airplane at 25000 feet?
The boiling point of water is related to the atmospheric pressure. The air pressure in the plane is not the same as outside the plane. Otherwise you couldn't breath in the plane. :)
Why are you advised to empty ink from your fountain pen before boarding an airplane?
Although a plane is pressurized it is not pressurized completely to ground or takeoff level. As the plane climbs the air pressure in the cabin is decreased with higher altitude. A typical airliner has the equivalent cabin altitude of 5,000 to 8,000 during cruise. The difference in pressure between the cabin air and that inside the ink cartridge of the pen draws out the ink as the pressure inside the pen is more than that outside.
When an airplane is ascending is pressure greater above the wings or below the wings?
Faster-moving air across the top of the wing lowers the pressure there. For a plane to ascend, the pressure must be sufficiently lower on top of the wing, and it will be forced upward by the greater pressure below the wing.
Why do potato chip bags expand while flying on an airplane?
As you get further from sea level, the air gets thinner; when you fly in a plane they keep the air inside thicker than the air outside so you can breathe easily, but it's still thinner than on the ground. A chip bag is sealed on the ground, so when it gets up to where the air is thin the pressure inside is still the same as it was down near sea level; that means the chip bag swells as pressure inside stays the same but pressure outside drops.
Why does ear pain while take off and landing?
When a plane takes off the air pressure inside the plane will drop. Behind your ear drums there is pocket of air (think of your head as an inflated balloon). When the pressure outside your head gets lower than the pressure inside your ear drums will bulge outwards a little, which is painful. Moving your jaw about, chewing gum, yawning etc can help open up the canal between your ears and the back of your throat, which will equalize the pressure. Landing is the same, but in reverse. The pressure inside will be lower, so the eardrums will bulge inwards. You can try pinching your nose and then trying to blow through it. This sould force some air in there and equalize the pressure.
As an airplane flies higher in the air what happens to the atmosphere outside the plane?
It gets thinner (the pressure drops) and colder.
