B Bubbles New member Jun 30, 2009 #1 ...thunder. If the tempera? There is a delay of 5 seconds between the time you see a flash of lightening and hear thunder. If the temperature is 20C, how far away is the lightening strike?"
...thunder. If the tempera? There is a delay of 5 seconds between the time you see a flash of lightening and hear thunder. If the temperature is 20C, how far away is the lightening strike?"
A Amit New member Jun 30, 2009 #3 speed of sound at 20 degree is 343 m/s. therefore distance is 1715m
