Examlex
Which of the following diagrams shows the greatest magnitude net torque with a zero net force? All the rods, of length 2r, rotate about an axis that is perpendicular to the rod and fixed in the centre of the rod. All the forces are of magnitude F or 2F and all distances from the axis are r or r/2.
Secondary Circular Reactions
Repetitive actions in young infants that serve to reinforce the infant's own actions on the environment, part of Piaget's sensorimotor stage of cognitive development.
Age Range
The span of years that separates the youngest from the oldest members of a population or group.
Outwardly Directed
Referring to actions or behaviors focused on external environments or people rather than oneself.
Tertiary Circular Reactions
Advanced repetitive actions in infants aged 12-18 months, characterized by experimentation and exploration to achieve desired outcomes.
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