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problem21_75

University Physics with Modern Physics with Mastering Physics (11th Edition)

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21.75: a) , 6 4 1 ) 2 ( ) 3 ( 4 1 2 2 0 2 0 L q πε L q q πε F = + = toward the lower the left charge. The other two forces are equal and opposite. b) The upper left charge and lower right charge have equal magnitude forces at right angles to each other, resulting in a total force of twice the force of one, directed toward
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