query: Do airplane wings use difference in pressure to generate lift or conservation of momentum?
positive_passages.docid: 26156
positive_passages.text: What really allows airplanes to fly?
negative_passages.docid: 32311
negative_passages.text: Is there a difference between Weight and Force of Gravity?
negative_passages.docid: 10449
negative_passages.text: Conservation of angular momentum exercise
negative_passages.docid: 100959
negative_passages.text: Is conservation of momentum and energy valid for non-inertial frames?
negative_passages.docid: 8798
negative_passages.text: During a collision, why is momentum not conserved in a participant's frame of reference?
negative_passages.docid: 104907
negative_passages.text: Why is the direction of net force on an object and the direction of acceleration of that object different in this problem?
negative_passages.docid: 132256
negative_passages.text: Conservation of momentum and energy in an explosion
negative_passages.docid: 53298
negative_passages.text: Why is momentum conserved when a ball hits a vertical wall?
negative_passages.docid: 11208
negative_passages.text: How is the kinetic energy of the wind transferred onto a lift based wind turbine?
negative_passages.docid: 89402
negative_passages.text: How can airplanes fly upside down?
negative_passages.docid: 74021
negative_passages.text: Why do heavier objects fall faster in air?
negative_passages.docid: 42722
negative_passages.text: Pressure difference along horizontal in accelerated fluids
negative_passages.docid: 110980
negative_passages.text: Why is momentum conserved in inelastic collisions? How is it related to momentum-impulse theory?
negative_passages.docid: 121320
negative_passages.text: Why is there conservation of kinetic energy in elastic collision and not in inelastic collision?
negative_passages.docid: 12818
negative_passages.text: In calculating work done by a constant force over a constant distance, why doesn't the subject's initial velocity matter?
negative_passages.docid: 93552
negative_passages.text: How can the centripetal force lead to objects flying apart?
negative_passages.docid: 107676
negative_passages.text: Work done when lifting an object at constant speed