Question

Hans stands at the rim of the Grand Canyon and yodels down to the bottom.
He hears his yodel echo back from the canyon floor 5.20 s later. Assume that
the speed of sound in air is 340.0 m/s. How deep is the canyon at this
location?

Answer 1

The depth of a canyon is

H = 340.0[m/s]*5.20[s]/2 = 884 metres.