A snowball is rolling down a hill and the radius of the snowball is increasing at a constant rate of $~0.2~\dfrac{\text{cm}}{\text{sec}}\,$.
(The volume of a sphere is $\dfrac{4}{3}\pi r^3$)
**What is the rate of change of the volume of the snowball when the volume is $~36\pi ~\text{cm}^3\,$?**
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