SOLUTION: 9) It is possible to estimate how far away a bolt of lightning is by counting the seconds between the flash and the thunder. If we let the variable s represent the number of second
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Question 432084: 9) It is possible to estimate how far away a bolt of lightning is by counting the seconds between the flash and the thunder. If we let the variable s represent the number of seconds, then a bolt of lighting is approximately miles away.
a. A lifeguard sees a flash of lightning. After 20 seconds, she hears thunder. About far away was the lightning?
b. A golfer sees a bolt of lightning strike a tree a few holes away. He hears the thunder for about 2.5 seconds later. About how far away from the tree is he standing?
You can put this solution on YOUR website! It is possible to estimate how far away a bolt of lightning is by counting the seconds between the flash and the thunder.
If we let the variable s represent the number of seconds, then a bolt of
lighting is approximately miles away.
:
Use 1100 ft/sec for the speed of sound
;
a. A lifeguard sees a flash of lightning.
After 20 seconds, she hears thunder. About far away was the lightning?
d =
d = 4.167 miles away
:
:
b. A golfer sees a bolt of lightning strike a tree a few holes away.
He hears the thunder for about 2.5 seconds later.
About how far away from the tree is he standing?
d = 2.5 * 1100
d = 2,750 ft away
