Particles: Suppose You Were to Try to Create a Proton-Antiproton

question 29

Multiple Choice

Particles: Suppose you were to try to create a proton-antiproton pair by annihilation of two very high-energy gamma rays of the same wavelength heading toward each other. The proton and the anti-proton have the same masses, but opposite charges. What would be the minimum energy needed for each photon? (e = 1.60 × 10^-19 C, m_proton = 1.67 × 10^-27 kg, c = 3.00 × 10⁸ m/s)

• A) 1.022 MeV
• B) 12.2 MeV
• C) 1880 MeV
• D) 939 MeV
• E) 223 MeV

Understand different roles and types of caregivers involved in childbirth.

Identify and describe newborns' perceptual capacities and developmental characteristics at birth.

Recognize cultural variations in childbirth practices and postpartum social adjustments.

Comprehend methods for assessing newborn health including the Apgar scale.

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Definitions:

Correspondence Theory

A theory of truth stating that the truth or falsehood of a statement is determined by how it relates to the world and whether it accurately describes (corresponds with) that world.

Objective Truth

Truth independent of our personal opinions and demonstrably true to anyone (who is in the proper position to observe, who has the right testing equipment, and so on).

Justified True Belief

A traditional model in epistemology that defines knowledge as a belief that is both true and justified by sufficient evidence or reasoning.

Knowledge

Knowledge or proficiency gained from direct experience or instruction; insight into a subject via its study or application in a practical or theoretical manner.