# Question #618a2

##### 1 Answer

#### Answer:

Their electrical potential energy is **22,500 J**.

#### Explanation:

The *electric potential energy* associated with two charges,

**Coulomb's constant**, equal to

As you can see, this is simply a plug-and-play problem in which you use the given values to determine

SInce one spere is **75 mm** from point **P** and the other is **25 mm** from the same point **P**, in *opposite directions*, it follows that the distance between them is equal to

This means that their electric potential energy is