# A Snowball's Rate of Change

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Vary the slider to illustrate the 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.

Contributed by: Cindy Piao and Karen Ye (Torrey Pines High School) (March 2011)

Open content licensed under CC BY-NC-SA

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## Details

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

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