At room temperature, sound travels at a speed of about 344 m/s in air. You see a distant flash of lightning and hear the thunder

Question

3 years ago

12

At room temperature, sound travels at a speed of about 344 m/s in air. You see a distant flash of lightning and hear the thunder

arrive 7.8 seconds later.
How many miles away was the lightning strike? (Assume the light takes essentially no time to reach you.)

Physics

1 answer:

beks73 [17] · Answer 1 · 2022-06-26T22:14:00+03:00

beks73 [17]3 years ago

4 0

Answer:

$d=1.67mi$

Explanation:

Assuming the light takes essentially no time to reach you, the distance at which the lightning occurred can be calculated by multiplying the speed of sound by the time it takes to hear the thunder:

$d=v_st\\d=344\frac{m}{s}(7.8s)\\d=2683.2m*\frac{1mi}{1609.34m}=1.67mi$