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brownca31089
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Homework Statement
A small piece of dust of mass m = 1.6 g travels horizontally through an electric air cleaner in which the electric field is 511 N/C. The electric force on the particle is equal to the weight of the particle.
What is the charge on the dust particle?
If this charge is provided by an excess of electrons, how many electrons does that correspond to?
Homework Equations
I know i have to solve for q and that my mass is the same as my force..but i have no idea where to even start. any help is appreciated!