Electrostatic and gravitational force

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SUMMARY

The discussion revolves around calculating the mass of a point charge q = 4.88 μC, positioned 9.51 cm above a fixed charge Q = 4.26 μC at the origin. The relevant equations include Coulomb's law, F = kQq/r², and the gravitational force equation, F = mg, where g = 9.803 m/s². The relationship between electrostatic and gravitational forces is crucial for determining the mass of charge q.

PREREQUISITES
  • Understanding of Coulomb's law and electrostatic forces
  • Knowledge of gravitational force calculations
  • Familiarity with unit conversions (microcoulombs to coulombs)
  • Basic algebra for solving equations
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  • Study the derivation and applications of Coulomb's law
  • Learn about the concept of electric fields and forces
  • Explore the relationship between electrostatic and gravitational forces
  • Practice problems involving mass calculations from electrostatic forces
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psysicsfeet
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Homework Statement


Point charge Q = 4.26 μC is fixed at the origin. Now, point charge q = 4.88 μC is carefully placed directly above it (along the y-axis), and it floats at (0,9.51 cm). Find the mass of q, in kg. Assume: g = 9.803 m/s^2.

Homework Equations


F=kq1q2/r^2
G=mg
probably

The Attempt at a Solution


I guess I need to figure out the relationship between electrostatic and gravitational force.
but will it be as simply as F=G?
 
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psysicsfeet said:
simply as F=G?
Try the calculation and see.
 

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