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When the lift (from the wings) exceeds the weight of the plane it rises, and vice versa.
The lift comes from the air flowing around the wings,
and varies with the speed of the plane (through the air) and the angle of the wings.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoA plane goes up (with a few exceptions) because it goes forward.
As the plane moves forward air passes over the upper curved section of the wing. Thanks to Bernoulli we know this causes a low pressure zone over the wing providing lift. But that s not all ... the wings of a plane are usually angled a bit upwards at the front. or achieve the same effect with the ailerons to force air down as it passes under the wing. The change in direction imparts a force upwards on the wing.
Helicopters are the same. The whirling rotor has a curved top and a inclined bottom plane that acts as mobile wing.
The few remaining planes with STOL (Short Take-off and Landing) capacity have redirected exhausts that can blow air downwards to provide a thrust upwards. Essentially the same as rockets.
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Aerobic exercise causes respiratory rates to go up.
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