An Electron and a Positron, Each Having Kinetic Energy 1

question 8

Multiple Choice

An electron and a positron, each having kinetic energy 1.843 GeV, collide head-on and annihilate, producing a proton and antiproton pair (M = 938.3 MeV/c²) . What is the kinetic energy of the antiproton produced in this way?

• A) 0.938 GeV.
• B) 0.905 GeV.
• C) 1.586 GeV.
• D) 1.843 GeV.

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Definitions:

Autonomic Arousal

The activation of the autonomic nervous system, governing involuntary physiological responses to stimuli.

Fear

A primal emotion triggered by the perception of danger, real or imagined, leading to fight-or-flight responses.

James-Lange Theory

A theory of emotion suggesting that physiological arousal precedes and causes the emotional experience, contrary to the common-sense view.

Autonomic Arousal

The activation of the autonomic nervous system, which controls involuntary body functions and can be triggered by stress or emotions.