Depth of Lake Surface for 3x Atmospheric Pressure: 20m

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In summary, the phrase "Depth of Lake Surface for 3x Atmospheric Pressure: 20m" refers to the measurement of the depth of a lake when the atmospheric pressure is three times higher than normal, and the depth is 20 meters. The depth of a lake is measured at 3x atmospheric pressure because it is a standard for scientific measurements. The depth of a lake surface can be measured using sonar technology, depth sounders, and hydrostatic pressure sensors. Various factors such as rainfall, temperature, wind, and geological features can affect the depth of a lake surface. Measuring the depth of a lake surface is important for understanding the health of the ecosystem and for practical purposes such as navigation and resource management.
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Homework Statement


At what depth a lake surface is the total pressure 3 times the normal atmospheric pressure?

Homework Equations



P=pgh this is the equation for liquid pressure.

About total pressure we should add also the atmospheric pressure which is pushing from above the surface of the liquid.

The Attempt at a Solution


Pl + Patm=pgh
so, 300kPa=1000kg/m3*10m/s2*h... the answer is 30m, but in the answer key is 20m.
 
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Thank you but don't need. Figured it out.Sorry for posting it too early.
 

FAQ: Depth of Lake Surface for 3x Atmospheric Pressure: 20m

What is the meaning of "Depth of Lake Surface for 3x Atmospheric Pressure: 20m"?

The phrase "Depth of Lake Surface for 3x Atmospheric Pressure: 20m" refers to the measurement of the depth of a lake when the atmospheric pressure is three times higher than normal, and the depth is 20 meters.

Why is the depth of a lake measured at 3x atmospheric pressure?

The depth of a lake is measured at 3x atmospheric pressure because this pressure level is often used as a standard for scientific measurements. It allows scientists to compare data from different lakes and bodies of water with more accuracy.

How is the depth of a lake surface measured?

The depth of a lake surface can be measured using a variety of methods, such as sonar technology, depth sounders, and hydrostatic pressure sensors. These instruments use sound waves or pressure changes to calculate the distance between the surface of the water and the lake bed.

What factors can affect the depth of a lake surface?

The depth of a lake surface can be affected by various factors, such as rainfall, temperature, wind, and geological features. Changes in these factors can cause fluctuations in the water level and, consequently, the depth of the lake.

Why is it important to measure the depth of a lake surface?

Measuring the depth of a lake surface is crucial for understanding the overall health and functioning of a lake ecosystem. It can also provide important information for navigation, flood control, and resource management purposes.

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