Calculate the distance to the ocean floor if a sonar signal takes 6 s to return to a ship's receiver

If it takes the sound 6 seconds to get to the floor and back, then it takes 3 seconds to reach the floor. So all you would need to do multiply (3 seconds) x (the speed of sound in water) = distance to sea floor. The internet can tell you the speed of sound in water, though just make sure you look for it in the units (feet or meters) that you want. I hope that helps.

2500.

Explanation:

All you would need to do multiply (3 seconds) x (the speed of sound in water) = distance to sea floor.

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what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements