WebOct 5, 2024 · It's a loose (and questionable) definition, but the five-second rule goes as follows: Food that's spent five seconds* or less on the floor is "safe" to eat. *This time frame is sometimes reduced to three seconds, or stretched to 10 — at the user's discretion, of course. Essentially, the five-second rule is your window of opportunity before ... WebOct 17, 2001 · The five second rule allows you to determine how far away a lightning strike, or pretty much any event that you can both see and hear, is. Sound travels about one mile every five seconds, so if you see some lightning, and start counting seconds, then hear thunder , you can estimate how many miles away the lightning struck by dividing the …
Can you calculate how far away lightning struck by thunder?
WebSeeing and hearing lightning and thunder can be used to protect yourself and others if you understand the 30/30 Rule. The first 30 is 30 seconds. If it takes less than 30 seconds to hear thunder after seeing a lightning flash, the probability of being struck by lightning is great because the lightning is within 6 miles of your location. WebThe 30 Second/30 Minute Rule Lightning Facts. Approximately 70 people are killed by lightning and 400 are injured in any given year in the U.S. (NOAA) On average, 10% of strike victims die and 70% suffer serious long term effects. (NOAA) The second most likely place of occurrence for a person to be struck is at a ball field or open field. brewer courses
Answer on Question #49419, Physics, Acoustics - Assignment …
WebThe 5 Second Rule is the secret to changing anything about your life. You can use the Rule and its countdown method to break any bad habit, interrupt self-doubt and negative self … WebThe ‘30-30 Rule’ Offers The Best Lightning Safety Guidance For The General Public. When You See Lightning, Count The Time Until You Hear Thunder. If That Is 30 Seconds Or Less, The Thunderstorm Is Close Enough To Be Dangerous – Seek Shelter (if you can’t see the lightning, just hearing the thunder is a good back-up rule). WebThe “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. We assume that there are 5 seconds between seeing the lightning and hearing the sound. (a) At 30°C, the speed of sound is [331+ 0.60(30)]m/s = 349m/s . brewer courses at st petersburg fl