The depth of the sea measured by means of an echo. If the time between the moment of the sound produced and…
The depth of the sea measured by means of an echo. If the time between the moment of the sound produced and received is $3.52 \mathrm{~s}$, then the depth of the sea is (The compressibility of sea water is $4.84 \times 10^{-10} \mathrm{~m}^2 \mathrm{~N}^{-1}$ and its density is $1024 \mathrm{~kg} \mathrm{~m}^{-3}$ ) is