The mass in the figure below slides on a frictionless surface. 
When the mass is pulled out, spring 1 is stretched a distance x1 from its equilibrium position and spring 2 is stretched a distance x2. The spring constants are k1 and k2, respectively. The force pulling back on the mass is
Definitions:
Childhood Eating Habits
Patterns and preferences of food consumption established during childhood, significantly impacting nutritional health and development.
Nutritional Intake
The total amount of food substances consumed that provide nutritional support for an organism.
Lifespan Perspective
The study of human development from birth to death, emphasizing growth and changes at every stage of life.
Human Development
The multidisciplinary study of how people grow and change physically, cognitively, and socially throughout their lifespan.
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