Two Identical Particles, Each with Charge Q, Are Placed on the X

question 3

Multiple Choice

Two identical particles, each with charge q, are placed on the x axis, one at the origin and the other at x = 5 cm.A third particle, with charge -q, is placed on the x axis so the potential energy of the three-particle system is the same as the potential energy when they are all infinitely far apart.Its x coordinate is:

• A)13 cm
• B)2.5 cm
• C)7.5 cm
• D)10 cm
• E)-5 cm

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Definitions:

Na+

Sodium ions, essential electrolytes in the body that play critical roles in nerve function, muscle contraction, and fluid balance.

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.