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Identical point charges (+20 μC) are placed at the corners of an equilateral triangle with sides of 2.0-m length. How much external energy is required to bring a charge of 45 μC from infinity to the midpoint of one side of the triangle?
Potassium
A chemical element (K) essential for the normal functioning of cells, nerves, and muscles.
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A type of anemia caused by the body's inability to absorb vitamin B12, leading to reduced red blood cell production.
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An essential nutrient required for the production of red blood cells and maintenance of the nervous system.
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