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. y Icollector soot Collector Soot particles moving Consider a soot particle of mass msoot= 1.4 nanograms (1.4e- 12 kg), which corresponds to a diameter of a few micrometers. upward Some number of electrons have been added to give the particle a total charge qsoot, Suppose the collector has a total charge 9collector = 1.85e-06 C. If the separation between the collector and the soot particle is r = 0.1 m, Ground What is the magnitude of qsoot (in units of C) so that the electric force exerted on the particle is equal to its weight = mg ?. Use: g = 10 m/s?, and k = 9E9 N m²/c². C Submit Answer Tries 0/2 How many electrons must be added to the soot particle ? electrons
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. y Icollector soot Collector Soot particles moving Consider a soot particle of mass msoot= 1.4 nanograms (1.4e- 12 kg), which corresponds to a diameter of a few micrometers. upward Some number of electrons have been added to give the particle a total charge qsoot, Suppose the collector has a total charge 9collector = 1.85e-06 C. If the separation between the collector and the soot particle is r = 0.1 m, Ground What is the magnitude of qsoot (in units of C) so that the electric force exerted on the particle is equal to its weight = mg ?. Use: g = 10 m/s?, and k = 9E9 N m²/c². C Submit Answer Tries 0/2 How many electrons must be added to the soot particle ? electrons
Related questions
Question
Transcribed Image Text: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.
y
Icollector
9soot
Collector
Soot
particles Consider a soot particle of mass msoot= 1.4 nanograms (1.4e-
moving
upward Some number of electrons have been added to give the particle
12 kg), which corresponds to a diameter of a few micrometers.
a total charge qsoot. Suppose the collector has a total charge
9collector = 1.85e-06 C. If the separation between the collector
and the soot particle is r = 0.1 m,
Ground
What is the magnitude of qsoot (in units of C) so that the electric force exerted on the particle
is equal to its weight = mg ?.
Use: g = 10 m/s², and k = 9E9 N m2/c?.
C
Submit Answer
Tries 0/2
How many electrons must be added to the soot particle ?
electrons
Expert Solution
Step 1
The Coulomb’s law can be written for the electric force between the charge qsoot and charge qcollector as below,
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
