# Two objects have masses of #9 MG# and #7 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #36 m# to #45 m#?

##### 1 Answer

Answer:

#### Explanation:

A very similarly worded problem .

The formula for the gravitational potential energy between two objects is:

Note:

Let

Therefore, the change in gravitational potential energy can be written as:

We can substitute the given values into the equation: