A cylindrical can of internal diameter 21 cm contains water. A solid sphere whose diameter is 10.5 cm is lowered into the cylindrical can. The sphere is completely immersed in water. Calculate the rise in water level, assuming that no water overflows.
Solution:
There is water to a height of 14 cm in a cylindrical glass jar of radius 8 cm. Inside the water, there is a sphere of diameter 12 cm completely immersed. By what height will the water go down when the sphere is removed?
Solution:
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