



 
Hi Jean, When the lead ball is in the bowl it makes a hole in the water in the shape of a segment of a sphere, this time of radius 1 inch but still at the height of h inches. You know the volume of this hole so subtract it from the volume of the segment in part (a) to get the volume of the water around the ball. Now do the calculus to find the rate at which the water level is rising. Penny  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 