The glass stopper has a cavity inside. it is necessary to determine the volume
| September 9, 2021 | education
The glass stopper has a cavity inside. it is necessary to determine the volume of density without breaking the cork. can this be done using a scale, a set of weights and a vessel of water?
Since we know the density of pure glass ro, we first need to find the volume of the cork.
To do this, we lower the plug into a vessel with water, and by the volume of displaced water we determine the volume of the plug with cavity V.
Then, using weights and a set of weights, we measure the mass of the plug with the cavity m.
We calculate the volume that the plug should have had if there was no cavity in it, using the formula:
V1 = m / ro.
Accordingly, the volume of the cavity in the plug will be equal to:
V2 = V – V1.
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