A 60-μC Charge Is Held Fixed at the Origin and a −20-μC

question 54

Multiple Choice

A 60-μC charge is held fixed at the origin and a −20-μC charge is held fixed on the x axis at a point x = 1.0 m. If a 10-μC charge is released from rest at a point x = 40 cm, what is its kinetic energy the instant it passes the point x = 70 cm?

• A) 9.8 J
• B) 7.8 J
• C) 8.8 J
• D) 6.9 J
• E) 2.8 J

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Definitions:

Situational Attribution

The process of attributing behavior to external circumstances or situations rather than to internal personality traits or dispositions.

Empathy Gap

The inability to accurately predict one's own or others' emotional states and behaviors in different situations, usually underestimating the influence of emotions.

Tend and Befriend

A theory that suggests in times of stress, individuals, particularly females, will seek social alliances and support, rather than isolating themselves or fighting.

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