A Spherical Raindrop Evaporates at a Rate Proportional to Its

question 64

Multiple Choice

A spherical raindrop evaporates at a rate proportional to its surface area. If V = volume of the raindrop and S = surface area, which of the following is a differential equation for ?

• A) with k a negative constant
• B) with k a negative constant
• C) with k a positive constant
• D) with k a positive constant

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