A Point Charge (−5

question 42

Multiple Choice

A point charge (−5.0 μC) is placed on the x axis at x = 4.0 cm, and a second charge (+5.0 μC) is placed on the x axis at x = −4.0 cm. What is the magnitude of the electric force on a third charge (+2.5 μC) placed on the y axis at y = 3.0 cm?

• A) 90 N
• B) 45 N
• C) 54 N
• D) 72 N
• E) 36 N

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Definitions:

Spontaneous Recovery

The reappearance of a previously extinguished response after a period of no exposure to the conditioned stimulus, often occurring in classical conditioning scenarios.

Efficacy

The ability to produce a desired or intended result, often used in the context of medications or treatments.

Clinical Utility

Whether a therapeutic intervention works under real-world conditions.

Designed Studies

Research studies carefully planned to investigate specific hypotheses or questions, using systematic methods.