Three Point Charges Are Positioned on the X Axis

question 1

Multiple Choice

Three point charges are positioned on the x axis. If the charges and corresponding positions are +32 μC at x = 0, +20 μC at x = 40 cm, and −60 μC at x = 60 cm, what is the magnitude of the electrostatic force on the +32-μC charge?

• A) 84 N
• B) 12 N
• C) 36 N
• D) 50 N
• E) 48 N

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Definitions:

Piaget

A Swiss psychologist known for his pioneering work in the study of child development and his theory of cognitive development which outlines how children progress through various stages of intellectual growth.

Concrete Operational

A stage in Piaget’s theory of cognitive development where children aged 7 to 12 develop logical thinking skills but are still concrete in their approach to problem-solving.

Formal Operational

A stage in Piaget's theory of cognitive development, where individuals are able to think abstractly, logically, and systematically.

Egocentrism

In psychology, the inability to differentiate between one's own perspective and another person's perspective.