Is it true president washington believed the future of the united states depended on staying neutral in the war between france and great british
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Ответ:
Ответ:
The canyon is approximately 314 meters away
Explanation:
Speed of Sound
If we emit sounds in an open space where a large obstacle (like a mountain) is expected to return the sounds, then it will travel forth and back at a given speed for a certain time. We can assume the speed of sound is constant, so we could know the approximate distance of the mountain (or canyon in our case) by the known formula.
Where
is the speed of sound and t is half the time we hear our echo.
The speed of sound in m/s can be calculated from the approximate formula in terms of the temperature T in degrees Celsius
We have
, so
Let's compute x, for t=1.8/2=0.9 seconds
The canyon is approximately 314 meters away