Calculating Electric Force with Coulomb's Law: Glass and Rubber Ball Example

Thread starter gotpink74
Start date Jan 23, 2012
Tags

Coulombs Coulombs law Law

AI Thread Summary

The discussion revolves around calculating the electric force between a glass ball with a charge of +2.8 µC and a rubber ball with a charge of -4.8 µC, separated by 4.5 cm. The relevant formula used is Coulomb's Law: F = k * Q1 * Q2 / r^2. Participants are attempting to solve the problem, with one user reporting a calculated force of -59.7333, which they believe is incorrect. The thread seeks assistance in verifying the calculations and understanding the application of the formula. Accurate application of Coulomb's Law is essential for determining the correct electric force in this scenario.

Jan 23, 2012

gotpink74

Homework Statement

What is the electric force between a glass ball that has +2.8 µC of charge and a rubber ball that has -4.8 µC of charge when they are separated by a distance of 4.5 cm?

2. Homework Equations

F=k*Q1*Q2/r^2

3. The Attempt at a Solution
-59.6507
-8.8888888.889
4.4380e12

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Jan 23, 2012

gotpink74

i got -59.7333 but it is wrong HELP please

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