2. A point charge of mass 5 10 kg and charge +5 106 C, attached to...

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2. A point charge of mass 5 10 kg and charge +5 106 C, attached to a string, is at rest in a uniform electric field, directed horizontally to the right, as shown below. The string makes an angle of 30 with the vertical. Calculate the magnitude of the electric field. 30% 2. A point charge of mass 5 10 kg and charge +5 106 C, attached to a string, is at rest in a uniform electric field, directed horizontally to the right, as shown below. The string makes an angle of 30 with the vertical. Calculate the magnitude of the electric field. 30%