Question

ДАЮ МНОГО БАЛЛОВ!! Вычисли давление воды на дно маленького бассейна (высота — 22 см, ширина — 50 см, длина — 128 см), если он не заполнен на 2 см до верхней границы. Плотность воды ρ=1000кг/м3, g≈10Н/кг. Ответ: давление воды на дно равно  кПа. (Результат при необходимости округли до сотых).

Answer 1

Ответ: 2кПа

Объяснение: P=pgh (p - плотность жидкости, h - высота, P - давление). P=1000кг/м3×10н/кг×0,2м=2000Па.

Answer 2

Calculation of Water Pressure on the Bottom of a Small Pool

To calculate the water pressure on the bottom of a small pool, we need to consider the height, width, and length of the pool, as well as the density of water and the acceleration due to gravity.

Given: - Height of the pool (h): 22 cm - Width of the pool (w): 50 cm - Length of the pool (l): 128 cm - Water density (ρ): 1000 kg/m³ - Acceleration due to gravity (g): approximately 10 N/kg

To calculate the water pressure on the bottom of the pool, we can use the formula:

Pressure (P) = ρ * g * h

Substituting the given values into the formula:

P = 1000 kg/m³ * 10 N/kg * 0.22 m

Converting the height from centimeters to meters:

P = 1000 kg/m³ * 10 N/kg * 0.22 m = 2200 N/m²

The pressure is measured in pascals (Pa), which is equivalent to N/m². Therefore, the water pressure on the bottom of the pool is 2200 Pa.

If rounding is necessary, the answer should be rounded to the nearest hundredth. In this case, the answer is already given in kilopascals (kPa), so no rounding is needed.

Answer: The water pressure on the bottom of the pool is 2200 kPa.

Please note that the sources provided do not contain relevant information for this specific calculation.