Calculating Electric Force Between Balloon & Denim

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SUMMARY

The electric force between a balloon charged with −2.0 μC and denim, separated by a distance of 6.0 cm, can be calculated using Coulomb's law. The formula used is Fe = k * |q1 * q2| / r², where k is the Coulomb constant (8.98755 × 10⁹ N·m²/C²). Substituting the values, the electric force is determined to be approximately 0.000749 N. This calculation is essential for understanding electrostatic interactions in physics.

PREREQUISITES
  • Understanding of Coulomb's law
  • Familiarity with electric charge units (microcoulombs)
  • Basic knowledge of physics equations
  • Ability to perform unit conversions and calculations
NEXT STEPS
  • Review the derivation and application of Coulomb's law in electrostatics
  • Learn about the concept of electric fields and forces
  • Explore the implications of charge interactions in different materials
  • Study the effects of distance on electric force calculations
USEFUL FOR

Students studying physics, educators teaching electrostatics, and anyone interested in the principles of electric forces and charge interactions.

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Homework Statement



A balloon rubbed against denim gains a
charge of −2.0 μC.
The Coulomb constant is 8.98755 ×
109 N · m2/C2.
What is the electric force between the bal-
loon and the denim when the two are sepa-
rated by a distance of 6.0 cm? (Assume that
the charges are located at a point.)
Answer in units of N.

Homework Equations



q=n.e
Fe=kq1q2/r^2
e=Fe/q


The Attempt at a Solution



i tried plugging everything in but they were wrong when i checked them. please explain to me what i did wrong! thanks .
 
Physics news on Phys.org


Show your calculations. With out that it is not possible to say what you did wrong.
 

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