Uncertainty Principle Using ΔEΔt ≥ ħ/2: the Lifetime of an Excited

question 18

Multiple Choice

Uncertainty principle using ΔEΔt ≥ ħ/2: The lifetime of an excited nuclear state is 1.0 ns. What is the minimum uncertainty in the energy of this state? (ħ = 1.055 × 10^-34 J ∙ s = 6.591 × 10^-16 eV ∙ s, 1 eV = 1.60 × 10^-19 J)

• A) 5.0 × 10^-10 eV
• B) 5.0 × 10^-26 eV
• C) 3.3 × 10^-25 eV
• D) 1.6 × 10^-7 eV
• E) 3.3 × 10^-7 eV

Grasp the social and political implications of affirmative action and electoral policies on African American communities.

Explore the migration trends and reasons among the African American population.

Understand the historical representation of African Americans in the U.S. Senate.

Identify factors affecting Barack Obama's presidential candidacy.

---

Definitions:

Assimilation

The process by which a person or a group's language and/or culture come to resemble those of another group.

Assimilation

The method through which people or groups from various ethnic backgrounds become assimilated into a society's prevailing culture.

Piaget's Concept

A theory developed by Jean Piaget that describes the cognitive development of children in four stages from birth to adolescence.

Characteristics

Distinctive traits or features that identify and differentiate individuals, objects, or concepts.