Mac and Tosh are resting on top of the water near the end of the
pool when Mac creates a surface wave. The wave travels the length
of the pool in 15 seconds. The pool
is 16 meters long. Determine the speed
of the wave in m/s.
A fisherman uses a sonic ranger (echolocation) to determine the
depth of a lake. The sound waves travel
at 1251.9 m/s through the water. When
the sonic ranger was used, it
took 0.61 seconds to travel to the
lake's bottom and back to the receiver. How deep is the lake in
m?