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scoundrel [369]
3 years ago
10

Which best describes a similarity between power plants that use water as an energy source and those that use wind as an energy s

ource?
A.Both use heat from within Earth to produce electricity.
B.Both use kinetic energy to produce electricity.
C.Both use resources that are not abundant.
D.Both use resources that produce a lot of air pollution.
Physics
2 answers:
stiks02 [169]3 years ago
6 0

The correct answer to the question is : B) Both use kinetic energy to produce electricity.

EXPLANATION:

Hydroelectricity is produced when the kinetic energy of the falling water rotates the turbine. The generator associated with the turbine is rotated, and electric energy is produced due to electric magnetic induction.

In case of power plants in which wind is used as energy source, the same process happens. The kinetic energy of wind rotates the propellers of wind turbine which in turn produces electric energy.

Hence, the correct similarity between them is statement B.

disa [49]3 years ago
3 0
The hydropower plant and wind turbines both uses kinetic energy to produce mechanical power and convert the mechanical energy using a generator to an electrical energy. They both have the process to produce energy but they differ in the source the hydropower plant uses water to whit the wind turbines power plant uses wind. Therefore the answer is letter B. 
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Aleksandr [31]

Answer:

the moment of inertia with the arms extended is Io and when the arms are lowered the moment

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Explanation:

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           L₀ = L_f

           I₀ w₀ = I w

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where we see that the angular velocity changes according to the relation of the angular moments, if we approximate the body as a cylinder with two point charges, weight of the arms

          I₀ = I_cylinder + 2 m r²

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If we say that the moment of inertia with the arms extended is Io and when the arms are lowered the moment will be

        I <I₀

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7 0
3 years ago
What’s the potential difference across a 5.0 ohms resistor that carries a current of 5.0A
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The correct answer is B-25 V

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m = 150 * (9.11*10^{-31})+170(1.673*10^{-27})

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