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A Snowball's Rate of Change
Adjust the slider to illustrate the following related rates problem: If a snowball melts so that its surface area decreases at a rate of 1 , find the rate at which the diameter decreases when the diameter is 10.



Problem from James Stewart, Calculus: Early Transcendentals, 4th ed., 1999, Page 257, #6.

"A Snowball's Rate of Change" from The Wolfram Demonstrations Project
 http://demonstrations.wolfram.com/ASnowballsRateOfChange/
Contributed by: Cindy Piao and Karen Ye (Torrey Pines High School)
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