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a 23 N cylinder with a diameter of 8.3 cm and a height of 16.9 cm...

a 23 N cylinder with a diameter of 8.3 cm and a height of 16.9 cm is lowered into an unknown fluid. when it is completely submerged In the fluid, an upward force of 15 N is required to keep it from sinking.

what is the mass density of the mystery fluid?

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