66:. Another example is the weight of an object or person riding in an elevator. When the elevator begins rising, the object begins exerting a force in the downward direction. If a scale were used, it would be seen that the weight of the object is becoming heavier because of the downward force, changing the apparent weight.
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is transferred into the body; the force of gravity on every part of the body is balanced by stress forces acting on that part. A "weightless" astronaut feels weightless due to the absence of these stress forces. By defining the apparent weight of an object in terms of contact forces, one can capture
47:, with an apparent weight of zero, has almost the same weight as he would have while standing on the ground; this is due to the force of gravity in low Earth orbit and on the ground being almost the same.
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An object that rests on the ground is subject to a contact force exerted by the ground. The contact force acts only on the boundary of the object that is in contact with the ground. This
73:, when dealing with a number of particles, as it is the amount of force that the "upward drag force" needs to overcome in order for the particles to rise and for fluidization to occur.
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The apparent weight can also differ from weight when an object is "partially or completely immersed in a fluid", where there is an "upthrust" from the fluid that is working against the
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is a property of objects that corresponds to how heavy an object appears to be. The apparent weight of an object will differ from the ordinary
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39:. By definition, the weight of an object is equal to the magnitude of the force of gravity acting on it. This means that even a "
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Weight of an object when a force additional to gravity is present
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acting on the object is not balanced by an equal but opposite
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Schaum's outline of theory and problems of applied physics
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69:The role of apparent weight is also important in
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175:Oman, Robert M.; Oman, Daniel M. (1997).
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216:Introduction to particle technology
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