A window in a submersible needs to be able to withstand the incredible forces that water will exert at depth. If the window is 30 cm x 15 cm, what would the force exerted by the water be at a depth of 1 km

Explanation:

Given:

dimension of the window,

depth of window under water,

We know that the pressure due to liquid column is given as:

where:

density of water

acceleration due to gravity

depth of the water column at the desired position

Now the force acting on the area of the window:

where:

area of the window

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.