when flying aeroplane how much pressure in outside and why sometimes it was shaked.?
107381
I agree, your English is poor but I think you are asking:\n\nWhen flying in aeroplane, how much pressure is outside? \n\nThe exact outside pressure will depend on the altitude at which you are flying. At a common cruising altitude of  37,000 feet, the outside air pressure is about 3.2 psi. At sea level it is 14.7 psi.  \n\nWhy does it sometimes shake?\n\nFlying in an airplane through air is just like riding in a car along a bumpy dirt road or a ship across choppy open water. The air, while invisible, is very much like an ocean and is always in motion while the aircraft moves through it. The more turbulent the air mass, the more the plane will bouce or shake as it passes through it. At high speeds the air takes on fluid like properties around an aircraft. The oceans are not always calm and glassy and neither is the air which is a constant mass in motion. Just like a journey on the seas or a country road, you cannot always expect your journey to be completely smooth.
889884
The pressure in an aircraft tire is typically in the range of 180 to 250 psi depending on model and the CBR (California Bearing Ratio) of the intended runway.  The atmospheric pressure at sea level is 14.7 psi.\nSo, if those tires were put in space, they would feel pressure of 195 to 265 psi, about 6 to 8% change.  Nothing to worry about, the pressure gets much higher only from the heat of the braking when back on the ground.  And it is cold in space with the wheels inside in the shadow of the landing gear bay, so the pressure gets actually lower in space.
967963
Either air pressure, or fluid pressure on a fluid present in the cylinder.
636833
Because the top side and bottom side of wings are shaped differently, air travels at different rates over the surfaces, causing lift.  The answer is C.
522890
Yes this happens and it happens because when an airplane lands it displaces air around it with a high pressure and speed.This large volume of displaced air with high speed exerts a high pressure on the car and it flies away from the track
677923
Drag is the force of the air which interferes with the speed of the plane
223737
When air is put under pressure it compresses, so more air fits into smaller spaces. The air at sea level is much denser than the air at 20,000 feet, which is why airplane cabins are pressurized. Humans have evolved to handle the air pressure at or near sea level, but cannot breathe the much thinner air found high up in the atmosphere.\n\nWater does not compress under pressure, so you cannot fit more water into a smaller space by exerting pressure. Therefore, as one descends into water and pressure increases due to the weight of the water above you, the force increases to levels that compress your lungs and torso, eventually stopping the expansion of your chest and crushing your ribs.
348312
as someone pointed out. it could be because of a very large angular rotation decreasing the air resistance.
230024
The same way as a full sized airplane. There are two forces at work that cause lift on the airplane. 1. lift due to the fact that the air flows faster over the wing than under the wing. That reduces the pressure on the top of the wing and causes lift. 2. the wing surface is pitched slightly up at the front of the wing, so that the air flow against the bottom of the wing causes an upward force against the wing causing the aircraft to rise.
1141344
Because the plane moves along with the earth because of inertia, even after it leaves the ground. If it didn't, then when you jumped straight up, you would land about a hundred meters from where you started.
1016502
It has a tiny motor that has a half-circle on top of a spinning post.  When it spins, the half circle makes it off-balance, so the shaking back and forth caused by that, is the vibrating you feel.
681873
They perform that feat by two methods. The classical method that was been taught since the mid 1700's is called the Bernoulli effect discovered by Daniel Bernoulli, a Swiss mathematician. This effect is that a fluid flowing with a greater velocity has a lower pressure than a fluid flowing with a lesser velocity. This pricipal has been put into effect with the construction of the aircraft wing. The upper surface of the wing is curved and has a longer surface over which air must flow than the lower surface. Therefore the air must flow faster over the upper surface than the lower surface. This lowers the air pressure over the upper surface of the wing and causes a lift by the pressure of the air on the lower surface.\n\nThis however is not the only force acting to keep the aircraft afloat though it has been taught as the force for many years. \n\nThe second force that is used, is cause by the angle of attact of the wing on the air. As the aircraft is in level flight the wing is tilted slightly upward. This causes the air to push against the bottom of the wing at a slight angle. \n\nTake your left hand and hold it at a slight angle to the horizontal in front of your eyes with the fingers pointing toward the right. Then with the fingers of the other hand pointing opposite to the fingers of the hand held at an angle, push horizontally against the palm of the hand.\n\nWhen you do this you will notice that the left hand tends to rise as you push against it. That is the second force that helps keeps the plane afloat.
179150
If you mean barometric pressure, both higher pressure and lower temperature inrease air density.  This means more available engine power at a given altitude, lower speed and less power needed to obtain a given amount of lift, and more loss due to drag at a given speed.
378987
air pockets are simply put pockets of air that are at a different pressure than the sir surrounding them. thus there is a heavy movement of air in these pockets (hight pressure air moving in). this is generally caused by different air tempretures. when an airplane enters these pockets then the fast moving air collides with the airplane wings and gives it a sound shake. that is when you face turbulance.
527176
Not only air pressure but also dehydration.  The air in an airplane is relatively dry and will dehydrate you thereby making you sleepy.  That's also why the airlines serve a lot of drinks on the flight...
141770
To answer this question there are two principles of physics involved and to really understand it is a little difficult.\nThe shape of the wing determine the lift on the wing. The birds know it very well they know how to fly.\nBy making the top of the wing a curves and the bottom a straight line,we obtain two different traveling distances for the air fluid to flow.The angle which the fluid flows is called the angle of attack and in order to fly the airpla must have the proper andgle of attack least it stalls.\n\nBernoulli's principle says that if the velocity of the moving fluid is increased the pressure is decreased.\n\nThe velocity of air over the top of the wing is greater than the air flowing under the wing.Because the air travels a longer distance for the same time as the air floweing below the wing.Hence the pressure is less on top of the wing.\n\nBy Newton third law the bottom of the wing gets the greater lifting power.\nTherefore the statement in the first line of you question is correct.\nSo the plane mimics the flight of a bird.
589842
The air pressure changes during the flight may have had something to do with it. But don't ignore it if you have doubts about it being healthy.