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Kipish [7]
3 years ago
12

Hydroelectric dams use ------- to produce electricity. gravitational potential energy of falling water

Physics
1 answer:
Eduardwww [97]3 years ago
7 0

Answer:

Gravitational potential energy

Explanation:

Hydroelectric dams are the power plants which generates electricity by using the energy of falling water from a great height.

A the water is stored in big reservoirs and at a great height, it contain lot of potential energy due to the height. As it falls downwards, the potential energy is converted into kinetic energy of the water. this kinetic energy of the falling water is used to run the turbine, and then the electric energy is generated.

So, in hydroelectric power stations, the potential energy of water is converted into the electric energy.

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garri49 [273]

Answer:

Exerxingtransforms the chemical energy in the food you eat into Kinetic Energy.

Therefore, the answer is A. Kinetic Energy

4 0
3 years ago
El cuerpo de una persona está cubierto con 1.6 m2 de ropa de lana. El grosor de la lana es 2.0 x 10-3 metro. La temperatura en l
netineya [11]

Answer:

<h2>Rate of heat transfer from the body of the person is given as</h2><h2>\frac{dQ}{dt} = 800 J/s</h2>

Explanation:

As we know that the rate of heat transfer due to thermal conduction is given as

\frac{dQ}{dt} = \frac{kA(T_2 - T_1)}{x}

so we have

k = 0.04 W/m C

A = 1.6 m^2

x = 2\times 10^{-3} m

\frac{dQ}{dt} = \frac{(0.04)(1.6)(36 - 11)}{2 \times 10^{-3}}

\frac{dQ}{dt} = 800 J/s

8 0
3 years ago
Gravity and magnetism are _ forces.<br>A. contact<br>B. field<br>C. tension<br>D. normal​
e-lub [12.9K]

Answer:

B. Field

Explanation:

Gravity and Magnetism are defined as non-contact forces, so that eliminates option A.

Tension is found in a rope or a spring, and is a force in itself, so that eliminates option B.

A normal force is one that is perpendicular to the direction of a slope, so that eliminates option D.

7 0
3 years ago
Which is the following would be the best example of inverse properties?
Zarrin [17]
I think is the first one a plane getting of a. the runaway
5 0
3 years ago
Read 2 more answers
How do you get on the cheer squad?!
Arada [10]

Answer:

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