Two small spheres each of mass 2.0g are suspended by light strings 10cm in length. A uniform external electric field is applied in the x direction. If the spheres have charges equal to -5.0 × 10-8C and +5.0 × 10-8C, determine the magnitude of the external electric field that enables the spheres to be in equilibrium at an angle of θ = 10o.

Two small spheres each of mass 2.0g are suspended by light strings 10cm in length. A uniform external electric field is applied in the x direction. If the spheres have charges equal to -5.0 × 10-8C and +5.0 × 10-8C, determine the magnitude of the external electric field that enables the spheres to be in equilibrium at an angle of θ = 10o.

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