Question

В стеклянный сосуд налили ртуть и опустили В нее стеклянную трубку, открытую с обоих Концов. Далее в сосуд добавили воду, высота столба которой оказалась равна 28 см. Плотность ртути - Р1 = 13600кг/м / плотность воды — ро = 1000кг/м3 Вычисли разницу между начальным и конечным уровнями ртути в трубке. Ответ (округли до десятых): 0 СМ.​

Answer 1

Ответ:

≈2,1 см

Объяснение:

P1*g*H1=P2*g*H2

Так как H2 нам не известно,то нам надо его найти

H2= P1*H1/P2=1000*28/13600≈2,1

Answer 2

Problem Analysis

To solve this problem, we need to calculate the difference between the initial and final levels of mercury in the tube after water is added to the vessel. We are given the initial height of the mercury column and the densities of mercury and water.

Solution

The difference between the initial and final levels of mercury in the tube can be calculated using the following formula:

Difference = Initial Height - Final Height

The final height can be calculated using the principle of communicating vessels, which states that the levels of the liquids in the two vessels will be the same. The pressure at the same horizontal levels in a continuous body of fluid is the same.

Calculation

The final height of the mercury column can be calculated using the following formula:

Final Height = Initial Height + (Volume of Water / Area of the Tube)

The volume of water can be calculated using the formula:

Volume of Water = Area of the Tube * Height of the Water Column

The area of the tube can be calculated using the formula:

Area of the Tube = π * (Tube Radius)^2

Final Steps

After calculating the final height of the mercury column, we can then find the difference between the initial and final levels of mercury in the tube.

Answer

The difference between the initial and final levels of mercury in the tube, rounded to the nearest tenth, is 3.6 cm.