Three 10 μC Charges Are Placed Along the X-Axis, One Charge

question 49

Multiple Choice

Three 1.0 μC charges are placed along the x-axis, one charge at x = −10 cm, another at the origin, and the last one at x = 10 cm. What is the total potential energy of this arrangement?

• A) 0.27 J
• B) −0.27 J
• C) 0.72 J
• D) 0.22 J
• E) infinite (or indeterminate)

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Definitions:

Gastric Bicarbonate

A bicarbonate ion (HCO3-) secreted by the stomach's mucosa that helps neutralize gastric acid and protect the stomach lining.

Cephalic Phase

The initial phase of digestion triggered by the sight, smell, thought, or taste of food, which stimulates gastric secretions in preparation for food ingestion.

Gastric Juice

A acidic fluid secreted by the stomach glands and active in promoting digestion.

Gastric Secretion

The process of producing and releasing fluids, including hydrochloric acid and digestive enzymes, by the stomach's lining.