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Two flashes of light occur simultaneously at t = 0 in reference frame S, one at x = 0 and the other at x = 600 m.They are observed in reference frame S', which is moving at 0.95c in the positive x direction.The origins of the two frames coincide at t = 0 and the clocks of S' are zeroed when the origins coincide.In S' the coordinate where the leading edges of the two light flashes meet and the time when they meet are:
Object Permanence
The understanding that objects continue to exist even when they cannot be seen, heard, or touched.
Preoperational Stage
A phase in Piaget's theory of cognitive development (ages 2-7) where children begin to engage in symbolic play but lack the ability to perform operations or use logic.
Cognitive Development
A field of study in psychology focusing on a child's development in terms of information processing, conceptual resources, perceptual skill, language learning, and other aspects of brain development.
Ages 2-7
Ages 2-7, in psychological development, typically refer to the preoperational stage in Piaget's theory of cognitive development, characterized by rapid language development and symbolic thinking.
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