0
Density of water per unit volume ie. g/cm3 * depth of water (cm). Answer will be in g/sq cm. Density of water is approximately 1g / cm3 therefore pressure at the bottom of a dam wall with 1m of water = 0.1kg / sq cm. Note: this is only valid at the bottom of the wall, half way up the 1m of water the pressure would be 0.05kg / sq cm. At the very surface of the water, there would be no pressure. Thats why a finger in a dyke (dike) can hold back the North Sea!
What else can I help you with?
Why are turbines placed at the bottom of a hydroelectric dam instead at the top?
Turbines are placed at the bottom of a hydroelectric dam to take advantage of the pressure created by the water stored in the reservoir above. The height difference between the water level in the reservoir and the turbines generates potential energy, which is converted into kinetic energy as the water flows through the turbines. Placing the turbines at the bottom allows for maximum energy extraction from the falling water.
How is air pressure different from the top of the mountain vs the bottom of a mountain?
Air pressure decreases as altitude increases, so at the top of a mountain, the air pressure is lower compared to the bottom of the mountain. This is because there is less air above pushing down on the air below at higher altitudes.
What causes the turbine of a hydro-electric dam to turn?
The turbine of a hydro-electric dam turns when water from the dam's reservoir flows through it at high pressure, causing the turbine blades to spin. This spinning motion is then transferred to a generator, where it produces electricity through electromagnetic induction.
Lift occurs because the air pressure on the top surface if an airfoil wing is?
Lift occurs in an aircraft wing because the wind speeds up as it goes over the top of it. The wind is traveling at relatively the same speed over the bottom. The faster air that travels over the top causes the wing to have lift because the air pressure is lower over the top therefore the wing 'rises' in a way. Hope this helps :)
Is there more pressure at the bottom of a bathtub of water 30cm deep or at a bottom of a pitcher of water 35cm deep?
The pressure at the bottom of the pitcher of water 35cm deep is higher than at the bottom of the bathtub of water 30cm deep. Pressure in a fluid increases with depth, so the deeper the water column, the greater the pressure at the bottom. This is due to the weight of the water above exerting a force on the bottom.
Why the base of the dam is made wider?
The pressure of the water against the top of the dam wall, is much less than the pressure exerted against the bottom of the dam wall. The width of a dam wall increases to compensate for the increased water pressures at the lower level.
Why is the base of a dam thinner then the wall?
The pressure against the dam wall increases at the lower levels than nearer the surface. So I expect the foot of the dam wall to be thicker at the bottom than at the top.
Why do dams need to be thicker on the bottom and thiner at the top?
because the water pressure on the damn is much higher on the bottom of it than the top.
Why are dams made thinner at the bottom?
This is because the pressure in a liquid increases with depth. This means that the pressure at the bottom of the dam is more. Hence it is more liable to break out from the dam as more pressure is exerted on the walls. So, the walls are thicker at the bottom.
Why are dams over rivers are made broader at bottom than at the top?
The pressure of the water (the weight) is greater at the bottom, due to the depth of the water. As the pressure is less near the top, the top of the dam wall doesn't need to be as thick as the bottom of the dam wall.
Why are the walls of a dam thickened near the base?
Dams are built broader at the base for two reasons. The first is because it needs to be stable enough to support the dam, and two, the bottom of the dam needs to be able to deal with the increased pressure of the water, as you get further down.So basically, they're thicker at the bottom mostly for aesthetic reasons, but luckily this also means they're stronger at the bottom which is where the water pressure is greatest - definitely a bonus.A:Two reasons: Particular to dams, the lower part of the structure must hold back the lower levels of water, which are at higher pressure than the upper levels of the water. Higher water pressure on the base of the dam needs greater strength to hold it back.The base of the dam must support the weight of all the structure above it. Even if it was not a dam, but just a tower (or a pyramid), the lower sections must be stronger, and higher sections can be weaker because there is less weight above them.A:Water pressure is greater at the base than the surface. A:Can you imagine if it was the other way around, thicker at the top? That would look pretty stupid and would ruin the beginning of the movie 'Goldeneye' where James Bond slides down the sloping dam wall - instead he'd fall off and face instant death.
Why are the walls of a dam made thick at the bottom and thin upward?
The deeper the depth, the greater is the pressure the weight of water puts on the dam wall.
Why are dams built stronger and broader at the bottom?
Because water pressure is more intense at depth than it is near the surface - hence the dam has to be stronger at the bottom - it withstands more pressure at the bottom.
What is hydraulic height as it relates to a dam?
The pressure that water exerts on the walls of the dam is proportional to the depth of the water or you might say the height of the column of water from the base of the dam. The hydraulic height is the same as the depth of the water to the bottom of the dam.
Why does a dam at the end of a lake need to be wider at the bottom?
Because water pressure is greater near the surface of the water
Why A dam has broader world at the bottom than at the top?
Due to the that the pressure exerted by a liquid increase with its depth. Thus as depth increase, more and more pressure is exert by water on the wall of dam. A thick wall is required to withstand a great pressure, therefore, the wall of the dam is made with thickness increasing towards the base
Why dams must be constructed so that they are much thicker at the bottom than the top?
Because the water pressure at the bottom of the dam is much more than the top.
