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Measurement of the density of the material a coin is made of. In a test tube...

Measurement of the density of the material a coin is made of. In a test tube you have 15 mL of water initially. If you add 10 coins in test tube with water, the volume increases to final value of 19.25 mL; determine the density of the material that the coin is made of, if the mass of the 10 coins is 30.4 g.

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