Question

3/5
how is the distance from the ship to the sea floor calculated us
echo sounding?
by using the formula: distance = speed x time
by measuring the temperature difference
by counting the number of echoes
by observing the color of the water

Explanation:

Echo sounding works by emitting a sound wave from the ship. The sound wave travels to the sea floor and reflects back (echo). The time it takes for the sound to go down and come back is measured. The speed of sound in water is known. Using the formula distance = speed × time, but since the sound travels to the sea floor and back (double - distance), the actual distance from the ship to the sea floor is \(d=\frac{speed\times time}{2}\). Measuring temperature difference, counting echo numbers, or observing water color are not relevant to the basic principle of calculating distance via echo - sounding.

Answer:

By using the formula: distance = speed x time