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Year 12 Specialist (Unit 3 & 4) Rates of change and differential equations

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Question 1
11787

A spherical bubble is expanding so that its volume increases at a rate of \(40\,m{m^3}/s\). When the radius is 10 mm, what is the rate of increase of its radius?

\(\dfrac{1}{{10\pi }}mm/s\)

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