Rates of Change Question (1 Viewer)

Shuuya

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MX1 HSC 2013 Question 13 b) (ii)


Can't remember how to do these :/

Thanks!
 

Shuuya

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^ I meant 13 a) (ii), can't seem to edit my post lmao
 

trecex1

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I think you can just integrate dr/dt to find an expression for r in terms of t with initial conditions (find what r is initially given V initially is 10^-6) Then set r=0 for when it's completely evaporated and solve for t.
 

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