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23 Nov 2019
Hydrometer Problem: 2Parts A) Suppose you made your own hydrometer. If its massis11.5 g, what volume will the hydrometer displace in a liquid withadensity of 1.20 g/cm3? I believe I understand this question. If you dividethemass of the hydrometer, 11.5 g, by the density of the water,1.20g/cm3, you find the volume of the hydrometer to be9.58cm3. Since a solid sinks in a liquid until the massofthe liquid it displaces is equal to its own mass, it woulddisplacethe same volume as itself. So, it would displace9.58cm3.Correct? B) Suppose the lower part of your hydrometer has avolumeof 7.0 cm3, and the upper part is 5.0cm long andhas across-sectional area of 0.62 cm2. What length oftheupper part of the hydrometer will be submerged? No idea...
Hydrometer Problem: 2Parts
A) Suppose you made your own hydrometer. If its massis11.5 g, what volume will the hydrometer displace in a liquid withadensity of 1.20 g/cm3?
I believe I understand this question. If you dividethemass of the hydrometer, 11.5 g, by the density of the water,1.20g/cm3, you find the volume of the hydrometer to be9.58cm3. Since a solid sinks in a liquid until the massofthe liquid it displaces is equal to its own mass, it woulddisplacethe same volume as itself. So, it would displace9.58cm3.Correct?
B) Suppose the lower part of your hydrometer has avolumeof 7.0 cm3, and the upper part is 5.0cm long andhas across-sectional area of 0.62 cm2. What length oftheupper part of the hydrometer will be submerged?
No idea...
