Question

Прошу помощи срочно! Вода по каплям вытекает из бюретки через отверстие диаметром 1,5 мм. Капли падают одна за другой с интервалом 1,5 секунды. За сколько времени вытечет 35 см3 воды?

Answer 1

Ответ:

Объяснение:

Дано:

d=1,5мм

t1=1,5с

V=35см³

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t-?

Объем одной капли равен:

V1=4/3πr³=πd³/6=3,14*1,5³/6=1,77мм³=0,00176см³

Количество капель в 35см³:

n=35/0,00176=19886

За 1 минуту падает

60/1,5=40капель

Время, за которое накапает 35см³ равно:

t=19886/40=497мин=8,28ч

Answer 2

Calculation of Time Taken for Water to Drip

To calculate the time taken for water to drip from the burette, we need to consider the volume of water that drips in each interval and the total volume of water that needs to be dripped.

Given: - Diameter of the hole: 1.5 mm - Interval between each drop: 1.5 seconds - Volume of water to be dripped: 35 cm³

To find the time taken, we can use the formula:

Time = (Volume of water to be dripped) / (Volume of water dripped in each interval)

Let's calculate the volume of water dripped in each interval.

Calculation of Volume of Water Dripped in Each Interval

The volume of water dripped in each interval can be calculated using the formula for the volume of a cylinder:

Volume = π * (radius)² * height

Given: - Diameter of the hole: 1.5 mm

We can calculate the radius by dividing the diameter by 2:

Radius = 1.5 mm / 2 = 0.75 mm = 0.075 cm

The height of each drop is not given explicitly, but we can assume it to be negligible compared to the radius. Therefore, we can consider the height to be approximately 0 cm.

Using these values, we can calculate the volume of water dripped in each interval.

Calculation:

Volume of water dripped in each interval = π * (0.075 cm)² * 0 cm

Since the height is approximately 0 cm, the volume of water dripped in each interval is 0 cm³.

Now, let's calculate the time taken for the water to drip.

Calculation of Time Taken:

Time = (Volume of water to be dripped) / (Volume of water dripped in each interval)

Given: - Volume of water to be dripped: 35 cm³ - Volume of water dripped in each interval: 0 cm³

Time = 35 cm³ / 0 cm³

Since we cannot divide by zero, it is not possible to calculate the time taken for the water to drip using the given information.

Please provide additional information if available or clarify the question further so that we can assist you better.