What is the relationship between height and gravitational potential energy of water behind a dam?
water is contained in a tidal basin behind a dam. the water has a depth h at high tide and zero at low tide. the gravitational potential energy of the water stored in the basin between a high tide and a low tide is proportional to

1. h^(1/2)
2. h
3. h^2
4. h^3

3.

Explanation:

Energy of volume contained in a dam is given by

where,

A = Horizontal surface area of the barrage

= Density of water

g = Acceleration due to gravity = 9.81 m/s²

h =  Vertical tidal range,

It can be seen that

Hence, the energy is proportional to

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.

f=ma newton

f=100x2.5=250n