How Many Seconds Would It Take an Echo Sounder's Ping

question 36

Multiple Choice

How many seconds would it take an echo sounder's ping to make the trip from a ship to the Challenger Deep (10,994 meters) and back? Recall that depth = 1/2 (1500 m/sec × Echo travel time) .

• A)0)1466 seconds
• B)1)466 seconds
• C)14.66 seconds
• D)146.6 seconds

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Definitions:

Serous Membrane

A thin membrane lining certain internal cavities of the body, secreting serous fluid to lubricate the surfaces.

Visceral Layer

The inner layer of a two-part serous membrane that covers internal organs.

Pleura

A double-layered membrane surrounding the lungs and lining the chest cavity, facilitating lung movement and serving as a protective layer.

Serous Membrane

A serous membrane is a thin layer of tissue that lines certain internal cavities of the body, secreting a serous fluid that lubricates and reduces friction between organs.