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Particle in a box: A particle confined in a rigid one-dimensional box (an infinite well) of length 17.0 fm has an energy level and an adjacent energy level En+1 = 37.5 MeV. What is the value of the ground state energy? (1 eV = 1.60 × 10-19 J)
Sectional Divide
The growing political, economic, and social differences and tensions between the northern and southern states of the United States, especially over issues like slavery, leading up to the Civil War.
Monroe Doctrine
A U.S. foreign policy principle declared in 1823, stating opposition to European colonialism in the Americas and restricting future colonization in the Western Hemisphere.
European Colonization
The process by which European powers occupied and ruled over regions across the world, often involving the exploitation and subjugation of indigenous populations, from the late 15th century onwards.
Americas Off-Limits
Pertains to policies or historical periods when certain areas of the Americas were restricted or closed off to specific groups, often for political or colonial reasons.
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