One of the communicating vessels contains water, and the other contains kerosene. The height of the water
| August 3, 2021 | education
One of the communicating vessels contains water, and the other contains kerosene. The height of the water column is 20 cm. What is the height of the kerosene column?
The weight of the liquid in each of the communicating vessels is equal to the weight of the liquid in the other vessel.
The volume of liquid in a vessel, with the same vessel diameters, is proportional to the height of the liquid column.
With a water density of 1.0 and kerosene 0.8, we compose the equation:
20 * 1.0 = X * 0.8.
X = 20 / 0.8 = 25.
Answer: the height of the kerosene column is 25 cm.
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