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3 years ago

A pycnocline is a boundary between changing regions of which of the following properties? What about a thermocline?

Physics

2 answers:

seropon [69]3 years ago

5 0

The answer is <span>temperature, salinity
Hope this helps. :)</span>

kotegsom [21]3 years ago

4 0

Answer:

temperature, salinity

Explanation:

In oceanography, pycnocline is the layer of the water column where a rapid change in vertical density gradient occurs. This increase in density with increasing depth is generally more intense in low latitude regions, as at high latitudes the density has little variation with depth. The term pycnocline is analogous to the terms halocline (intense vertical salinity gradient) and thermocline (intense vertical temperature gradient). Generally the three features occur at the same depths, typically between 300 and 1000 m below the ocean surface. Pycnocline is the result of the combination of thermocline and halocline, as temperature and salinity influence the density of seawater. The relationship between these three factors (temperature, salinity and density) conditions the distribution of water bodies in the ocean.

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Over the last several decades, scientists have addressed the problem of nonrenewable natural resources such as fossil fuels. Hum

ExtremeBDS [4]

Answer:

Option (C)

Explanation:

The nuclear energy is defined as a type of energy which liberates either by the process of nuclear fusion or nuclear fission and is mainly used to generate electricity. This energy is stored in the core of an atom (or nucleus).

It is highly effective, cost-effective and there is no emission of greenhouse gases.

But it also has some disadvantages, of which one is that it produces radioactive waste materials, which are difficult to dispose these substances and is also a very expensive method. These materials emit radiations that are harmful to the organisms. So, it is very challenging to dispose these radioactive waste materials.

Thus, the correct answer is option (C).

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3 years ago

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KATRIN_1 [288]

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2 years ago

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What does training for hypertrophy do to your body

VikaD [51]

Answer:

The answer is A.

Explanation:

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Hope that helped.

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2 years ago

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Use the law of conservation of energy (assume no friction nor air resistance) to determine the kinetic and potential energy at t

slava [35]

Answer:

Part A

1) At the starting point, we have;

PE = 40,000 J

2) PE = 0 J, KE = 40,000 J

3) KE = 20,000 J

4) PE = 15,000 J

5) KE = 32,500 J

6) KE = 40,000 J, PE = 0 J

7) KE = 35,000 J

8) KE = 40,000 J, PE = 0 J

Part B

The total Mechanical Energy = ME = 40,000 J

At the final point, we have;

ME = KE + PE = 40,000 J + 0 J = 40,000 J

Explanation:

Part A

By the law of conservation of energy, we have;

ME = PE + KE

Where;

ME = The total Mechanical Energy of the system

PE = The Potential Energy of the system

KE = The Kinetic Energy of the system

Where there is no friction, we have;

At the final stage, KE = 40,000 J. PE = 0 J

Therefore, ME = PE + KE = 40,000 J + 0 J = 40,000 J

1) At the starting point, we have;

KE = 0 J, therefore, PE = ME - KE = 40,000 J - 0 J = 40,000 J

2) At the bottom of the roller coaster, at the same level the PE is taken as PE = 0 J at the final stage, we have;

PE = 0 J, therefore, KE = ME - PE = 40,000 J - 0 J = 40,000 J

3) Where PE = 20,000 J, KE = ME - PE = 40,000 J - 20,000 J = 20,000 J

4) Where KE = 25,000 J, PE = ME - KE = 40,000 J - 25,000 J = 15,000 J

5) Where PE = 7,500 J, KE = ME - PE = 40,000 J - 7,500 J = 32,500 J

6) At the bottom KE = 40,000 J, PE = 0 J

7) Where PE = 5,000 J, KE = ME - PE = 40,000 J - 5,000 J = 35,000 J

8) KE = 40,000 J, PE = 0 J

Part B

The given that there is no friction nor air resistance, the total Mechanical Energy, ME, is constant and equal to the sum of the Potential Energy, PE and the Kinetic Energy, KE, as follows;

ME = KE + PE

At the final point, we have;

ME = 40,000 J + 0 J = 40,000 J

The total Mechanical Energy = ME = 40,000 J

8 0

2 years ago

Can someone give me tips to passing AP Physics 1 with a solid A? Like, tips on how to memorize a lot of equations? Thank you!

Anna007 [38]

A good way for me to remember things is to study it, and to write it down! Say you want the formula for speed, I would write the formula multiple times on a piece of paper!

Here's a video that I haven't actually watched, I just looked it up! It might help you out though: <span>https://www.youtube.com/watch?v=-Wqrw4G79Kc</span>

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2 years ago