Question

a ship sends out a sound signal straight down and receives its echo after one second. what is the depth of the sea at this spot?(Speed of sound in water=1430m/s)

Answer 1

The depth of the sea at that point is 715 m.

Answer 2

this question is based on echo
the formula for echo is
velocity * time/2 = distance
velocity is 1430 time is 1 second
just multilpy them we get
1430
now divide this by 2
we get
715
the distance is 715 meters
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