Problem:
Liquid does not mix with water. Unless obstructed, it spreads out on the surface of water to form a circular film cm thick. A rectangular box measuring cm by cm by cm is filled with liquid . Its contents are poured onto a large body of water. What will be the radius, in centimeters, of the resulting circular film?
Answer Choices:
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E.
Solution:
The volume of liquid in is . The film is a cylinder whose volume in is . Solve to find .