Question

При температуре 0 градусов по Цельсию скорость звука в воздухе составляет 332 м/с. При повышении температуры на 10 градусов скорость звука увеличивается на 6 м/с. На полигоне при температуре 30 градусов выше нуля проходили испытания артиллерийских снарядов. Через какое время после выстрела был слышен звук залпов в населенном пункте, находящемся в 7 км от полигона?

Answer 1

Объяснение:

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Answer 2

Calculation of the Speed of Sound at Different Temperatures

To calculate the time it takes for the sound of artillery shots to reach a populated area located 7 km away from the firing range, we need to determine the speed of sound at the given temperature.

According to the information provided, at a temperature of 0 degrees Celsius, the speed of sound in air is 332 m/s. Additionally, for every 10-degree increase in temperature, the speed of sound increases by 6 m/s.

To find the speed of sound at a temperature of 30 degrees Celsius, we can use the given information. Since the temperature has increased by 30 degrees from 0 degrees Celsius, the speed of sound will increase by 6 m/s for every 10-degree increase. Therefore, the speed of sound at 30 degrees Celsius will be:

332 m/s + (3 * 6 m/s) = 332 m/s + 18 m/s = 350 m/s.

Now that we have the speed of sound at 30 degrees Celsius, we can calculate the time it takes for the sound to travel 7 km.

Calculation of the Time for Sound to Travel 7 km

To calculate the time it takes for sound to travel a distance, we can use the formula:

Time = Distance / Speed.

In this case, the distance is 7 km, which is equal to 7000 meters, and the speed of sound at 30 degrees Celsius is 350 m/s.

Using the formula, we can calculate the time it takes for the sound to travel:

Time = 7000 m / 350 m/s = 20 seconds.

Therefore, it would take approximately 20 seconds for the sound of the artillery shots to reach the populated area located 7 km away from the firing range at a temperature of 30 degrees Celsius.

Please note that the calculations provided are based on the given information and assumptions.