Question

При проведении опыта вещество равномерно охлаждали в течение 10 минут. При этом каждую минуту температура вещества уменьшалась на 5° C. Найдите температуру вещества (в градусах Цельсия) через 9 минут после начала проведения опыта, если его начальная температура составляла − 8° C . ​

Answer 1

Ответ:

10 15 8 ,,,,,,,,,,,,,,

Answer 2

Calculation of Temperature Decrease

To find the temperature of the substance after 9 minutes of cooling, we need to calculate the total temperature decrease from the initial temperature of -8°C.

Given: - The substance is cooled uniformly for 10 minutes. - The temperature decreases by 5°C every minute.

To calculate the temperature after 9 minutes, we need to subtract the total temperature decrease from the initial temperature.

Let's calculate the total temperature decrease: - The temperature decreases by 5°C every minute. - The experiment lasts for 10 minutes.

Therefore, the total temperature decrease is 5°C * 10 minutes = 50°C.

Now, let's calculate the temperature of the substance after 9 minutes: - The initial temperature is -8°C. - The total temperature decrease is 50°C.

To find the temperature after 9 minutes, we subtract the total temperature decrease from the initial temperature: - Temperature after 9 minutes = Initial temperature - Total temperature decrease - Temperature after 9 minutes = -8°C - 50°C = -58°C.

Therefore, the temperature of the substance after 9 minutes of cooling is -58°C.

Please note that the temperature decrease is assumed to be constant throughout the 10-minute cooling period, based on the information provided.