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QUESTION
A small piece of dust of mass m = 1.4 g travels horizontally through an electric air cleaner in which the electric field is 495 N/C.
A small piece of dust of mass m = 1.4 g travels horizontally through an electric air cleaner in which the electric field is 495 N/C. The electric force on the particle is equal to the weight of the particle. What is the charge on the dust particle?
