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A 3000-N bear grasping a vertical tree slides down at constant velocity.The friction force between the tree and the bear is
Rods And Cones
Photoreceptor cells in the retina of the eye that are responsible for vision under low light conditions (rods) and color vision and detail in well-lit conditions (cones).
Perceptual Constancies
Refers to the psychological feature that allows humans to perceive objects as having constant properties, such as size and color, despite changes in the environment or perspective.
Size
A dimension that represents the magnitude of an object or its extent in space in one or more directions.
Shape
The external form or appearance of an object or figure, determined by its outline or surface.
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