Miles Tugo is camping in Glacier Canyon and he makes a loud holler. The sound bounces off the nearest canyon wall (which is located 170 meters away from Miles) and returns to Miles. Determine the time elapsed between when Miles makes the holler and the echo is heard.

It would take 1 s to hear the echo.

Explanation:

Here, the sound covered a total of 340 meters, since it bounces off the canyon wall and travels back to Miles in the form of echo.

The time elapsed can be determined by,

v =

⇒ t =

where: v is the speed of sound in air (343 m/s), D is the distance of the nearest canyon (170 m).

So that,

2D = 2 x 170 = 340 m

Thus,

t =

 = 0.9913 s

t = 1 s

It takes 1s for Miles to hear his echo.

d.7.5cm is your answer

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong