Three Identical 3

question 21

Multiple Choice

Three identical 3.0-µC charges are placed at the vertices of an equilateral triangle that measures 30 cm on a side.What is the magnitude of the electrostatic force on any one of the charges? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)1.6 N
• B)1.8 N
• C)2.0 N
• D)2.2 N
• E)2.4 N

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Definitions:

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Commonly known as IQ, measures an individual's cognitive abilities in relation to their age group.

Raven Progressive Matrices Test

A nonverbal group intelligence test used to measure abstract reasoning and regarded as a good estimate of fluid intelligence.

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Wechsler Intelligence Scale for Children

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