When hiker walking through a canyon shouts Hello and hears an echo from the canyon wall 4 seconds later Approximately how far away is the wall?

Answer 1

-===answered by Cody p.===-

686 meters

Answer 2

this is my answer (and I'm probably wrong, so please correct me):

75 ft..

and here's how i came up with it

d=rt

d = 1125 (ft/s, @speed of sound) * (0.0166666666666667 (seconds in an hr) * 4 =

0.0666666666666667) = 75 ft * 3 = 225 yards

so i think it's 75 feet from mouth to wall and the same would apply from wall to ear so double the 75 and you get 150 ft.. or 4.5 football fields.. pretty sure that's wrong, so help me see why i made a mistake!

plus I'm assuming the guy is at the top of the Grand Canyon, because it doesn't say how far down he is... therefore my 75 ft estimation. :)

"hello"... 4 seconds later.. "hello".. = 75 feet, or someone is calling out for help that sounds like you and you ignore it kuz your too focused on figuring out the miles per second that sound travels.. lol

Answer 3

-===answered by Cody p.===-

686 meters

Answer 4

it briana