Question

the time interval between a lightning flash and the first sound of thunder is 5 seconds. if the speed of the sound of air is 330m/s.find the distance of the flash from the observer​

Answer 1

Answer:

If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you'll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close. Keep in mind that you should be in a safe place while counting.

Answer 2

Answer:

1650 metres

Explanation

The speed of the sound, distance traveled and the time taken relationship is given as follows.

Speed Of Sound= $\frac {Distance travelled}{Time taken}$

From this equation,the Distance traveled is derived as

Distance Travelled=Speed Of Sound×Time Taken

That is, Distance Travelled=330m/s×5seconds, Given that the speed of sound is 330 m/s.

= 1650 meters.

Hence, the distance of flash from the observer is 1650 meters.

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