Question

Сосуд в форме куба заполнен водой. Найди давление воды на дно, если масса воды равна 8 г. (принять g≈10Н/кг). Ответ: давление воды на дно равно ??????7 Па.

Answer 1

Масса воды равна ее объему т.к. плотность 1, значит объем куба=8мл=8см³
Тогда одна грань куба 2 см
$P=\rho gh=1000\cdot9.8\cdot0.02=196$Па

Answer 2

Calculation of Pressure

To find the pressure exerted by the water on the bottom of the cube-shaped vessel, we can use the formula:

Pressure = Force / Area

The force exerted by the water is equal to the weight of the water, which can be calculated using the formula:

Force = Mass × Gravity

Given that the mass of the water is 8 g and the acceleration due to gravity is approximately 10 N/kg, we can calculate the force:

Force = 8 g × 10 N/kg

Now, we need to calculate the area of the bottom of the cube-shaped vessel. Since the vessel is in the shape of a cube, all sides are equal. Let's assume the length of one side of the cube is 'a'. The area of the bottom of the cube is then given by:

Area = a × a

Now, we can substitute the values into the formula for pressure:

Pressure = (Force / Area)

Let's calculate the pressure:

Force = 8 g × 10 N/kg = 80 N

Area = a × a

Now, we need to find the value of 'a'. Unfortunately, the dimensions of the cube-shaped vessel are not provided in the question. Therefore, we cannot calculate the exact pressure without this information.

Please provide the dimensions of the cube-shaped vessel (the length of one side) so that we can calculate the pressure accurately.