# What is the force, in terms of Coulomb's constant, between two electrical charges of #-45 C# and #30 C# that are #15 m # apart?

##### 1 Answer

Jan 12, 2016

-6k or

#### Explanation:

You would use Coulomb's Law for this question:

where q1 represents the quantity of charge on object 1 (in Coulombs), q2 represents the quantity of charge on object 2 (in Coulombs), and r represents the distance of separation between the two objects (in meters). "k" is a constant, and it's value is

If we plug in the values we get:

In terms of "k", this would simplify to:

If we sub in the value for k, we get:

A negative force indicates a force of ATTRACTION, whereas a positive force indicates a force of REPULSION.

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