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Statement of a problem № 3652

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Two identically charged spheres are suspended by strings of equal length. The strings make an angle 30° with each other. When suspended in a liquid of density 0.8 g/cm3 , the angle remains the same. What is the dielectric constant of the liquid? The density of the material of the sphere is 1.6 g/cm3 .

Solution:
Two identically charged spheres are suspended by strings of equal length. The st

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