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A ball of mass mB is released from rest and acquires velocity of magnitude vB before hitting the ground. The ratio of the magnitude of the momentum the Earth acquires to the magnitude of the momentum the ball acquires is
Fluid Intelligence
The capacity to think logically and solve problems in novel situations, independent of acquired knowledge.
New Problem
An issue, question, or challenge that has not been encountered or addressed before, requiring novel approaches or solutions.
Cattell and Horn
Psychologists who developed the theory of fluid and crystallized intelligence, differentiating between the ability to solve new problems and the use of learned knowledge.
Immune System
The immune system is the body's defense mechanism against infectious organisms and other invaders, comprising a network of cells, tissues, and organs.
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