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a spherical ice of initial volume 1000 cm^3 is melting at a rate 2 times the...

a spherical ice of initial volume 1000 cm^3 is melting at a rate 2 times the surface area. when does it completely melt? volume of the sphere of radius is r=4/3 pir^3 and surface area = 4pir^2 This is a ODE problems Thanks!

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