10
Mar
Seeing and hearing lightning and thunder can be used to protect yourself and others if you understand the 30/30 rule. That means it'll take the sound of thunder about 5 seconds to travel 1 mile.
To take a look at something many of us learned as a kid let's explore what is known as the 5 second rule.
5 second rule lightning. The thunder travels away from the lightning bolt and in about 5 seconds it will have traveled 1 mile. If you see a flash and instantly hear the thunder, the lightning stroke was very close. 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close.
The “5 second rule” says that for every 5 seconds between seeing a lightning strike and hearing the associated sound, the lightning is 1 mile distant. (noaa) the second most likely place of occurrence for a person to be struck is at a ball field or open. Assume 1 mile equals 1610 meters.
5 second rule” states that for every 5 seconds after seeing the lightning strike you hear thunder is one mile distant. Determine the difference in distance between lightning and thunder after 5 seconds. The first 30 is 30 seconds.
A severe thunderstorm is expected to roll through the new york city area later this evening. (a) at 30°c, the speed of sound is [331+ 0.60(30)]m/s = 349m/s. So, 15 divided by 3 would be 5 kilometers in distance.
The speed is calculated by:speed = distance/time = (1mi/5s) (1610 m/1mi) =. D = b) what is the distance sound travels at 30°c? We also know that there are 5280ft in 1 mile and we also know that there are 0.3048m in 1ft.
Appoint someone to watch the skies during your outdoor work or recreation. (noaa) on average, 10% of strike victims die and 70% suffer serious long term effects. 15 seconds after a flash:
We know there is 1 mile per every 5 seconds after the lightning is seen. So, the “flash to bang” distance can be calculated as follows: Check the latest thunderstorm forecast and monitor the noaa weather radio.
Keep in mind that you should be in a safe place while counting. A) what is the distance light travels? If it takes less than 30 seconds to hear the roaring sound of thunder after seeing the flash of light, the lightning storm is close enough to pose a danger.
First of all, we need to know the speed of sound. If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you'll get the distance in miles to the lightning: Every 5 seconds, between a lightning flash and the following thunder gives the distance to the fla.
Even if you can’t see the lightning, just hearing the thunder is a good backup rule. There appears to be no scientific consensus on the general applicability of the rule, and its origin is unclear. Thus, you’ll get that the lightning struck around 217 feet away.
After hearing the last rumble of thunder, wait 30 minutes before leaving shelter. 5 seconds after a flash: To calculate the distance in kilometers, divide the seconds by 3 instead.
30 second/30 minute rule by: Five seconds is one mile, 10. In order to use the rule of thumb to find the speed of sound in meters per second, we need to use some conversion ratios.
That means it'll take the sound of thunder about 5 seconds to travel 1 mile. For example, if the lightning struck for about 5 seconds, divide 1,087 by 5 to calculate the distance. If this time is less than 30 seconds, lightning is a threat.
Remember, if you can hear thunder, chances are that. The speed of sound is 343 m/s. Given the speed of the sound in the problem which is 1 mile per 5 seconds.
So for every 5 seconds you count before you hear thunder, that equals 1 mile. 10 seconds after a flash: Five (5) seconds approximates one (1) mile of distance.
Therefore the rule of thumb is fairly close. To take a look at something many of us learned as a kid let's explore what is known as the 5 second rule. The 5 second rule says that for every 5 seconds between seeing a lightning strike and hearing the associated sound, the lightning is 1 mile distant.
This is enough information to solve this problem. Therefore, the lightning is approximately one kilometer distant for every 3 seconds that elapse between the visible flash and the first sound of thunder (or one mile for every 5 seconds). Seeing and hearing lightning and thunder can be used to protect yourself and others if you understand the 30/30 rule.
Sound travels at about 1,088 feet per second, or about 0.2 miles per second (depending on air temperature and humidity). In the same five seconds, the light could have traveled the lunar distance four times. Count the seconds between seeing lightning and hearing thunder.
The lightning 30/30 rule is a great way to tell how far lightning struck and take precautionary measures to avoid falling victim to lightning strikes. For example, if you counted to 15 seconds before you heard thunder, divide 15 by 5 to get 3 miles. 20 seconds after a flash:
We assume that there are 5 seconds between seeing the lightning and hearing the sound. When you see the thunder strike, count the time (in seconds) for which it lasts. As you know the speed of sound is approximately 1,087 feet per second.
(seconds between flash and bang) divided by 5. As it approaches and lightning begins to illuminate the sky, you can estimate how far away the storm is with some simple math. Sound travels at about 340 m/s, so multiply the number of seconds you counted by 340, and you'll know how many meters away lightning struck.
The five second clock starts when the team throwing it in has possession of the ball (usually bounced or handed to a player while out of bounds by the official). Take your response and divide it by 5 to determine the distance of the lightning strike in miles. Next week is lightning awareness week.