The acceleration due to gravity, g , is given by
g = \frac{G M}{r^2},
where M is the mass of the Earth, r is the distance from
the center of the Earth, and G is the uniform gravitational
constant.

**(a)**
Suppose that we increase from our distance from the center of the
Earth by a distance

*(Your answer will be a function of x and r.)*

**(b)**
Is this change positive or negative?

*(Think about what this tells you about the acceleration
due to gravity.)*

**(c)**
What is the percentage change in

percent change =

You can earn partial credit on this problem.