Three Point Charges Are Located on The $x$ -Axis at the Following Positions

question 86

Multiple Choice

Three point charges are located on the $x$ -axis at the following positions: $Q _ { 1 } = + 2.00 \mu \mathrm { C }$ is at $x =$ $1.00 \mathrm {~m} , Q _ { 2 } = + 3.00 \mu \mathrm { C }$ is at $\mathrm { x } = 0.00$ , and $Q _ { 3 } = - 5.00 \mu \mathrm { C }$ is at $x = - 1.00 \mathrm {~m}$ . What is the magnitude of the electric force on $Q 2 ? \left( k = 1 / 4 \pi \varepsilon _ { 0 } = 8.99 \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 } \right.$ )

• A) \(0.135 \mathrm {~N}\)
• B) \(0.0810 \mathrm {~N}\)
• C) \(0.0540 \mathrm {~N}\)
• D) \(0.189 \mathrm {~N}\)
• E) \(0.158 \mathrm {~N}\)

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Definitions:

ECF

Extracellular fluid, which is the body fluid outside the cells, playing a critical role in transporting nutrients and removing waste.

Resting Membrane Potential

The electrical charge difference across the membrane of a resting neuron or muscle cell, making it polarized and ready for activation.

Na+

Sodium ions, essential for conducting nerve impulses and maintaining the balance of fluids in the body.

Plasma Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, controlling the movement of substances in and out of the cell.