Solve this:
According to the rule of thumb, every five seconds a lightning flash and the following thunder give the distance of the storm in miles.
Assuming that the flash of light arrices in essentailly no time at all estimate the speed of sound in m/s from the rule.
Show work if possible, thanks.
2007-08-30 10:07:47 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
How do I get by?
You need to learn how to punctuate.
2007-08-30 10:22:27 · update #1
A lightning flash 1 mile away...assume the light arrived instanteously. But the sound took 5 seconds to travel 1 mile.
1 mile = 5280 ft x 12 in/ft x 2.54x10^-2 meters/in = 1609 meters
1609 meters in 5 sec or 231.9 m/sec
2007-08-30 10:14:14 · answer #1 · answered by skipper 7 · 1⤊ 0⤋
It takes five seconds for the sound to travel one mile
5 sec/mi
So if you want mi/sec what do you need to do?
If you want meters per second, it will be helpful to know that there are 5280 feet in a mile and 0.3048 meters per foot
2007-08-30 10:14:44 · answer #2 · answered by dogsafire 7 · 0⤊ 0⤋
Work out how many meters there are in a mile. If five seconds is a mile, how many meters is five seconds? How meters is one second? That's the answer.
2007-08-30 10:14:32 · answer #3 · answered by Gnomon 6 · 0⤊ 0⤋
It's right on your head!. right next to you!. learn to spell too!.
How do you get by in school?
2007-08-30 10:12:20 · answer #4 · answered by Dragon'sFire 6 · 1⤊ 0⤋