Calculating Electric Force Between Balloon & Denim

In summary, the conversation discusses a problem involving a balloon rubbed against denim gaining a charge of -2.0 μC and the electric force between the two when separated by 6.0 cm. The Coulomb constant is also mentioned and the equations used to solve the problem are provided. The person attempted to solve the problem but their calculations were incorrect and they are seeking an explanation for their mistake.
  • #1

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 .
 
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  • #2


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

1. How do you calculate the electric force between a balloon and denim?

The electric force between a balloon and denim can be calculated using Coulomb's Law, which states that the force is equal to the product of the charges divided by the square of the distance between them. In this case, the charges would be the charges on the balloon and denim, and the distance would be the distance between them.

2. What factors affect the electric force between a balloon and denim?

The electric force between a balloon and denim is affected by the amount of charge on each object and the distance between them. It is also affected by the properties of the materials, such as their dielectric constant and conductivity.

3. How does the charge on the balloon and denim impact the electric force?

The electric force between the balloon and denim is directly proportional to the charge on each object. This means that if the charge on one object increases, the force will also increase. If the charges have opposite signs, they will attract each other, and if they have the same sign, they will repel each other.

4. Can the electric force between a balloon and denim be negative?

Yes, the electric force between a balloon and denim can be negative if the charges on the objects have opposite signs. This indicates that they are attracting each other. If the charges have the same sign, the force will be positive, indicating that they are repelling each other.

5. How do you use the electric force equation to solve for the distance between a balloon and denim?

To solve for the distance between a balloon and denim using the electric force equation, you would rearrange the equation to solve for distance. This would give you the square root of the product of the charges divided by the force. You would then take the square root of that value to find the distance between the objects.

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