Electro Statics What am I missing?

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The discussion revolves around calculating the electric force between a charged balloon and denim using Coulomb's law. The balloon gains a charge of 8.0 microcoulombs after being rubbed against denim, and the distance between them is 5.0 cm. The user is unsure about the charge of the denim, questioning whether it could be a standard charge or if it should be derived from the conservation of charge principle. It is concluded that if the balloon has a charge of +8.0 microcoulombs, the denim would have a charge of -8.0 microcoulombs, allowing for the calculation of the electric force. The conversation highlights the application of fundamental electrostatic principles in solving the problem.
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Electro Statics...What am I missing!?

Homework Statement


A balloon rubbed against denim gains a charge of 8.0microcoulumbs (I can't do the sign O.o). What is the electric force between the denim and balloon when the two are separated by a distance of 5.0 cm?


Homework Equations


Coulumb's law: Fe = Kc q1q2/r^2


The Attempt at a Solution


Ok, so I was given q1: 8mc I know Kc: 8.99*10^9 and I know R: 5 cm This leaves q2, how am I to know what the charge of q2 is? Could it be the standard 1.60219 * 10^-19? Or is the charge transferred?
 
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I would assume that both the balloon and denim were originally neutral. Then you can use the Law of Conservation of Charge (charge cannot be created or destroyed; i.e. Qinitial=Qfinal) to find the other charge.
 


So then we assume that the charge of the balloon has a charge of -8mc? We have only touched the Conservation of Charge conceptually...
 


Oh, alright! Thanks
 
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