Distance from Flash: Soldier 20°C, 6 secs After Cannon Fire

In summary, a soldier hears the sound of a distant cannon 6.00 seconds after seeing the flash. At a temperature of 20 degrees Celsius, the speed of sound is 342 m/s. Using the formula D = R * T, the distance can be calculated by multiplying the speed of sound by the time it takes for the sound to reach the soldier. Light can also be taken into account, but it has a minimal impact on the calculation.
  • #1
demode
30
0
1. A soldier hears the sound of the firing of a distant cannon 6.00 seconds after seeing the flash. If the temperature is 20 degrees Celsius, how far is the soldier from the flash?



2. D = R * T



3. Since the speed of sound at 0 degrees Celsius is 330 m/s, the speed of sound at 20 degrees Celsius is 342 m/s.
With that being said, how do you find the distance? D = 342 * 6 ?
 
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  • #2
Can anyone give me some insight?
 
  • #3
Why are you unsure of your approach?
 
  • #4
The only thing that could make this hard is if you wanted to take light into account. It takes some time for light to reach the soldier first, but its almost instant and makes no significant difference
 

1. What is the significance of measuring distance from flash after cannon fire?

The distance from flash after cannon fire is an important measurement in ballistics and military science. It can help determine the effectiveness and accuracy of a cannon or firearm, as well as the potential danger to soldiers and civilians in the surrounding area.

2. How is the distance from flash measured?

The distance from flash is typically measured using specialized equipment such as rangefinders or lasers. These devices can accurately calculate the distance between the muzzle flash and the target or observer.

3. What is the temperature and time frame used in this measurement?

The temperature used in this measurement is 20°C, or 68°F. This is a standard temperature used in scientific experiments to provide consistent and comparable results. The time frame is 6 seconds after cannon fire, which is considered a safe distance for soldiers to be from the flash.

4. How does the distance from flash affect soldiers?

The distance from flash can have a significant impact on soldiers in the field. If they are too close to the flash, they may experience temporary blindness, deafness, or burns from the intense heat. Being too far from the flash may also decrease the effectiveness of their weapons and leave them vulnerable to enemy attacks.

5. Are there any other factors that can affect the distance from flash measurement?

Yes, there are several other factors that can affect the distance from flash measurement, such as weather conditions, terrain, and the type of weapon being fired. These factors should be taken into consideration when analyzing the results of the measurement.

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