The depth of the sea is essentially the distance that sound has traveled.
The distance can be calculated from the speed formula:
S = v * t,
where v is speed, t is time.
Let’s find the distance that the sound traveled in all 8 seconds to the bottom of the sea and back (approximate speed of sound in water is 1500 m / s):
S = 1500 m / s * 8 s = 12000 (m).
Since 12,000 m is the distance from the ship to the bottom and back from the bottom to the ship, the depth of the sea in this section will be equal to half of the entire path traversed by sound:
s = S / 2;
s = 12000/2 = 6000 (m).
Answer: the sea depth is 6000 m (6 km).
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.