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OpenStudy (watchmath):
A cyllindrical water tank with its circular base parallel to the ground is being filled at the rate of 3 cubic feet per minute. The radius of the tank is 2 feet. How fast is the level of the water in the tank rising when the tank is half full?
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OpenStudy (anonymous):
Level of water after 1 minute = 3/4pi, so level is rising at 3/4pi per minute Same rate after 2 minutes, so same rate when half full
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