What is the relationship between determining how far away lightning is and safety?
Solved
Show answers
More tips
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
- H Health and Medicine How does childbirth happen: everything future mothers need to know...
- H Health and Medicine What Are the Best Vitamins? A Scientific View on Vitamin Supplements...
- A Auto and Moto How to Deregister a Car in Moscow?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- A Auto and Moto How to choose the right drive for your BMW...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
- L Leisure and Entertainment Mysteries of the Name Vyacheslav Dobrynin...
- H Health and Medicine What makes Graves’ disease dangerous?...
- F Food and Cooking When is Easter in 2011?...
Answers on questions: English
- E English The word that is asynonym for pattern3A is...
- B Business An investor purchases a put option with a strike price of $100 for $3. This option is considered in the money if the underlying is trading:...
- M Mathematics What is the constant of proportionality in the equation y = StartFraction x over 9 EndFraction?1. 02. StartFraction 1 over 9 EndFraction3. StartFraction 8 over 9 EndFraction4....
- M Mathematics the ratio between length and breadth of a rectangle is 7 : 5 find its length and breadth if it its perimeter is 60 m ...
Ответ:
Just count the number of seconds that pass between a flash of lightning and the crack of thunder that follows it, then divide that number by five. The resulting number will tell you how many miles away you are from where lightning just struck
Explanation:
Here's a simple method for calculating your distance from a lightning strike.
Just count the number of seconds that pass between a flash of lightning and the crack of thunder that follows it, then divide that number by five. The resulting number will tell you how many miles away you are from where lightning just struck.
Five seconds, for example, indicates the lightning struck 1 mile away, and a 10-second gap means the lightning was 2 miles away.
This technique is called the "flash-to-bang" method, and it can keep you safe during rainy summer weather. The National Weather Service recommends taking cover if the time between the lightning flash and the rumble of thunder is 30 seconds or less, which indicates the lightning is about 6 miles away or closer.
This method is based on the fact that light travels much faster than sound through the atmosphere: Light travels at 186,291 miles per second (299,800 km/s), whereas the speed of sound is only about 1,088 feet per second (332 meters per second), depending on air temperature.
For metric-system conversions, follow this method: 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. A three-second count, then, would place the lightning strike about 1,020 m away, or roughly 1 km.
Ответ: