Three Identical $3.0 - \mu \mathrm { C }$ Charges Are Placed at the Vertices of an Equilateral Triangle

question 58

Multiple Choice

Three identical $3.0 - \mu \mathrm { C }$ charges are placed at the vertices of an equilateral triangle that measures 30 $\mathrm { cm }$ on a side. What is the magnitude of the electrostatic force on any one of the charges? $( k = 1 / 4 \pi$ $\varepsilon _ { 0 } = 9.0 \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 }$ )

• A) \(1.8 \mathrm {~N}\)
• B) \(2.0 \mathrm {~N}\)
• C) \(2.2 \mathrm {~N}\)
• D) \(2.4 \mathrm {~N}\)
• E) \(1.6 \mathrm {~N}\)

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