A Sonar of a ship sends sounds waves of speed 1600 m/s. These waves are reflected back by the ocean floor in 4 seconds. Find the depth (in m) of the ocean floor._x005F_x000D_

A Sonar of a ship sends sounds waves of speed 1600 m/s. These waves ar

1.	A Sonar of a ship sends sounds waves of speed 1600 m/s. These waves are reflected back by the ocean floor in 4 seconds. Find the depth (in m) of the ocean floor._x005F_x000D_
A.	6400
B.	3200
C.	1600
D.	4800
Answer» C. 1600