Question: Suppose there is a charged particle (maybe a small dust grain that has somehow gotten charged) in the atmosphere near Earth's surface. The mass of

Suppose there is a charged particle (maybe a small dust grain that has somehow gotten charged) in the atmosphere near Earth's surface. The mass of the particle is 10^-15 kg. The only forces acting on the particle are gravity and an electric force from Earth's electric field. If the particle is in equilibrium, determine what thesign andmagnitude of the charge of the particle must be. Explain completely how you know. Yes, this is a net force problem.

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