Explanation:
bottom right = physical change
top left = chemical change
top right = physical change
bottom left = chemical change
<h3>A physical change is a change that goes from one form to another and physical changes can be reversed</h3><h3>example: water to ice or air to water</h3><h3 /><h3>A chemical change is when a substance combines with another substance and when it is combined it cannot be reversed</h3><h3>example: burning and or rusting</h3>
The force of gravity is proportional to 1/r^2, where r is the radius (distance) between the objects.
So if the force was originally
, doubling the distance between them would make the new force
On the left side of the equation is the reactants (starting side) and the right side (end side) is the products.
