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05.04.2020 •
Mathematics
A cork in the shape of a cylinder has a radius of 2 cm, a height of 5 cm, and weighs 2.5 grams. Find the volume and density of the cork.
base area:
volume of cork :
the corks density ( # of grams over cubic centimeter) =
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Ответ:
For this case we have that by definition, the density is given by:
Where:
M: It is the mass
V: It is the volume
We find the volume of the cylinder:
Where:
r: It is the radius of the cylinder
h: It is the height
So the density is:
Ответ:
When squaring a fraction, square both numerator AND denominator