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A charged cork ball of mass m = 16 g is ...

A charged cork ball of mass m = 16 g is suspended from a light string in the presence of a uniform electric field as shown in the figure. When `E=(1/2hati+2hatj)N//C` , the ball is in equiligrium at the angle of `37^@`. find W if

The charge on the ball is `Wxx10^(-2)C.`

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