Question

How to do this?

Answer 1

"A rifle is fired in a valley with parallel vertical walls. The echo from ne wall is heard 2 s after the rifle was fired. The echo from the other wall is heard 2 s after the first echo. How wide is the valley?"

Answer 2

The echo from one wall* sorry.

Answer 3

Alright, this is generally an easy question. Let's assume the speed of sound in the valley is 343.2 m/s. To find the width of the valley: 2(343.2)=686.4 m.

Answer 4

I think you could figure out the rest?

Answer 5

Yes, I did that, but I wasn't exactly sure if it was really that easy...

Answer 6

Yeah, it's that easy lol. The total width would be 1372.8 m.