1.036. MY NOTES PRACTICE ANOTHER Gravel is being dumped from a conveyor belt at a rate of 30 fts/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast (in ft/min) is the height of the pile increasing when the pile is 8 ft high? (Round your answer to two decimal places.) ft / min