Kinetic Energy in water and the rate carried across each square meter

In summary, the conversation discusses the kinetic energy of an ocean current and the potential power that could be extracted from it. The first part calculates the kinetic energy contained in a cubic volume of seawater, while the second part discusses the rate at which the current carries kinetic energy across each square meter. The conversation also mentions that stopping the entire flow is an unrealistic limit for power extraction. In response to a question, the formula for kinetic energy and the mass of 1 m^3 of seawater are referenced.
  • #1
annie05
2
0
1. Consider an ocean current flowing at 2.5m/s
a) How much kinetic energy is contained in a cubic volume of water that measures 1m on each side? The density of seawater is about 1030kg/m3
b) If the flow is perpendicular to one of the cube faces, what is the rate at which the current carries kinetic energy across each square metre? Your answer gives an upper limit for the power that could be extracted from the flow, although it is an unrealistic limit because you’d have to stop the entire flow

2. I am not sure of which equations to use


3. No attempted solution
 
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  • #2
What's the formula for kinetic energy?

What's the mass of 1 m^3 of seawater?
 

Related to Kinetic Energy in water and the rate carried across each square meter

1. What is Kinetic Energy in water?

Kinetic Energy in water is the energy that is possessed by moving water. It is a form of energy that results from the movement of molecules within the water.

2. How is Kinetic Energy in water measured?

Kinetic Energy in water is measured in Joules (J). It can be calculated by multiplying the mass of the water (in kilograms) by the square of its velocity (in meters per second).

3. What factors affect the rate of Kinetic Energy carried across each square meter of water?

The rate of Kinetic Energy carried across each square meter of water is affected by the velocity of the water, the density of the water, and the surface area of the water. Other factors such as temperature, pressure, and turbulence can also have an impact.

4. How does Kinetic Energy in water impact aquatic life?

Kinetic Energy in water is an important source of energy for aquatic life. It helps to drive ocean currents and tides, which in turn can affect the distribution and movement of marine organisms. Additionally, some aquatic organisms, such as fish, use kinetic energy to swim and move through the water.

5. Can Kinetic Energy in water be harnessed for energy production?

Yes, Kinetic Energy in water can be harnessed for energy production through technologies such as hydroelectric power. This involves using the movement of water to spin turbines, which generate electricity. However, the impact on aquatic ecosystems and the potential for disruption of natural water flow must be carefully considered when implementing such technologies.

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