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Bess [88]
4 years ago
7

What do hydroelectric plants use to generate electrical energy?

Physics
2 answers:
Mandarinka [93]4 years ago
5 0

Answer:

A.  falling water

Explanation:

I got it right on Edgenuity. Good luck on your quiz.

vekshin14 years ago
4 0

Answer:AC generators

Explanation:

In hydroelectricity as the gate in the dam is open,water flow with great pressure through the penstock,the water hits the turbine,which is connected to an AC generator and the turbine begins to rotate,as the turbine begins to rotate,mechanical energy of the rotating turbine is converted to electrical energy in the AC generator

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Answer: Master Degree- it shows that your our more professional in what you wen tto get your degree in

Explanation:

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4 years ago
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A moss begins to grow on a rock in an area that was previously uninhabited by life. This is an example of a .
Kitty [74]

Answer: primary ecological succession

Explanation:

Primary ecological succession: This occurs when a certain or some organisms dominate an area that was uninhabited of life. This may happen after a natural disaster that leaves the land barren. The presence of these organisms on the barren land will help the soil occupied to gain nutrients which will eventually allow some other plants to grow on it. The growth of plants will later invite insects and insects may invite animals.

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3 years ago
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Suppose the earth suddenly came to halt and ceased revolving around the sun. The gravitational force would then pull it directly
AleksAgata [21]

Answer:

613373.65233 m/s

Explanation:

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r_s = Radius of Sun = 695.51\times 10^6\ m

In this system it is assumed that the potential and kinetic energies are conserved

\dfrac{1}{2}Mv_2-\dfrac{GMm}{r_e+r_s}=0-\dfrac{GMm}{r}\\\Rightarrow v=\sqrt{2GM(\dfrac{1}{r_e+r_s}-\dfrac{1}{r})}\\\Rightarrow v=\sqrt{2\times 6.67\times 10^{-11}\times 1.989\times 10^{30}(\dfrac{1}{6.371\times 10^6+695.51\times 10^6}-\dfrac{1}{147.12\times 10^{9}})}\\\Rightarrow v=613373.65233\ m/s

The velocity of Earth would be 613373.65233 m/s

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3 years ago
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Explanation:

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(I guess the liquid should come after the is)

Couldn't answer all but wanted to help

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nikklg [1K]
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