Question

Water is filling a cone-shaped cup which has a total height of 6 cm and a radius of 2 cm. If the water is filling the cup at a rate of 3 cm^3 / sec , how fast is the surface of the water rising when the depth is 4 cm? Recall that the volume of a cone is given by V= (1/3)*pi*r^2 *h, as one can show in Calc II.

 

Rate water is rising = ________

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