mercedes73
14.10.2019 •
Mathematics
Apiece of metal with a mass of 140. g is placed in a 50 ml graduated cylinder. the water level rises from 20. ml to 41 ml. what is the density of the metal?
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Ответ:
2. 1 milliliter of water has a volume of 1 cubic centimeters.
3. Mass= Density * Volume
The water level rises from 20.mL to 41.mL means that a volume of 21mL of water has been displaced.
This means that the volume of the object is 21 cm cubed. (by 1 and 2)
By 3, the density of the piece of metal is:
Density=Mass/Volume=140 g / 21 cm^3= (140/21) g/cm^3=6.67 g/cm^3
6.67 g/cm^3
Ответ: