Question

While looking out the window, you see lightning flash and then two seconds later, you hear the thunder. How far was the lightening from you

Answer 1

the other person is soooo wrong

Step-by-step explanation:

The answer is 2,200 ft. This is because the speed of light travels about 1100 feet per second (according to my teacher). You heard the thunder 2 second later, yes? So all you have to do is 1100 + 1100= 2,200 ft! Super simple! For example if you had heard the thunder 3 seconds later it would be..... 3,300 ft. You would just need to multiply (or add, whatever one you prefer) the feet with the second

Answer 2

s = 686 m

Step-by-step explanation:

Let,

time taken by light to reach the window = t

therefore,

time taken by sound to reach window = t + 2

speed of light = c = 3 x 10⁸ m/s

speed of sound = v = 343 m/s

Now, the distance covered by both light and sound is same. Therefore,

(s)light = (s)sound

(c)(t) = (v)(t + 2)

(3 x 10⁸)t = (343)(t + 2)

(3 x 10⁸ - 343)t = 686

t = 686/2.99 x 10⁸

t = 2.3 x 10⁻⁶ s

Now, the distance of lightning from window will be:

s = ct

s = (3 x 10⁸ m/s)(2.3 x 10⁻⁶ s)

s = 686 m