Question

Мензурку первый раз наполнили доверху водой , а второй раз подсолнечным маслом . Сравните силы давление жидкостей на стенки мензурки в первом и во втором случаях , Масло 930 кг/м Вода 1000 кг/м

Answer 1

Плотность масла меньше плотности воды, следовательно, давление в первом случае больше, чем во втором.

Answer 2

Comparing Pressure Exerted by Water and Sunflower Oil in a Measuring Cylinder

When comparing the pressure exerted by water and sunflower oil in a measuring cylinder, it's important to consider the density of the liquids involved. The density of water is 1000 kg/m³, while the density of sunflower oil is 930 kg/m³.

Density of Water: 1000 kg/m³ Density of Sunflower Oil: 930 kg/m³

The pressure exerted by a liquid on the walls of a container is directly proportional to the density of the liquid and the height of the liquid column. Since the measuring cylinder is filled to the brim in both cases, the height of the liquid column is the same.

Therefore, the pressure exerted by the sunflower oil will be less than the pressure exerted by water due to its lower density.

This can be further explained using the formula for pressure:

Pressure (P) = Density (ρ) x Acceleration due to gravity (g) x Height (h)

In this case, the height is the same for both liquids, and the acceleration due to gravity is constant. Therefore, the pressure is directly proportional to the density of the liquid.

Conclusion: The pressure exerted by the sunflower oil on the walls of the measuring cylinder will be less than the pressure exerted by the water due to the lower density of sunflower oil compared to water.

This conclusion is based on the principles of fluid mechanics and the relationship between pressure, density, and height in a column of liquid.