Question

Using Coulomb's Law to Clean the Air Modern smokestacks use devices called scrubbers to remove large amount of pollution in the form of small particles (soot). Scrubbers use a two steps process: electrons are first added to the soot particle, and an electric force then pulls the particle out of the smoke stream collector soot Collector Soot Consider a soot particle of mass msoot 1.2 nanograms (1.2e-12 kg), which particles corresponds to a diameter of a few micrometers. Some number of electrons have moving been added to give the particle a total charge asoot- Suppose the collector has a total upward charge qcollector- 1.6e-06 C. If the separation between the collector and the soot particle is r 0.1 m, What is the magnitude of qsoot (in units of C) so that the electric force exerted on the particle is equal to its weightmg? Groun Use: g - 10 m/s2, and k 9E9 N m2/c2 Submit Answer Tries 0/2 How many electrons must be added to the soot particle ? electrons Submit Answer Tries 0/2

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Answer 1