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3 years ago

Geothermal energy is derived from the sun. True or False?

2 answers:

8 0

Geothermal energy is heat energy that exists and is formed in the earth's crust and Solar energy is energy consisting of light and heat from the sun. So it is FALSE

Further Explanation :

The temperature under the earth's crust increases with increasing altitude. The temperature in the center of the earth is estimated at 5400 ° C. Geothermal energy comes from the tectonic activity on earth that has occurred since the planet was made. This heat also comes from the sun's heat absorbed by the surface of the earth. Besides this geothermal energy source addresses several phenomena:

The decay of radioactive elements below the surface of the earth.
The heat is released by heavy metals because it is attached to the center of the earth.
Electromagnetic effects that are controlled by the earth's magnetic field.

This energy has been used to heat space from the air of Roman civilization but is now more popular for producing electrical energy. Around 10 Giga Watt geothermal power plants were installed worldwide in 2007 and accounted for around 0.3% of the world's total electricity. Geothermal energy is quite economical and environmentally friendly, but it is limited only to the tectonic border.

Learn More :

Geothermal energy: brainly.com/question/1061324, brainly.com/question/4407290

Details :

Class: Senior High

Subject: Physics

Keyword: Geothermal energy

pashok25 [27]3 years ago

3 0

So we want to know is it true or false that geothermal energy is derived from the Sun. Geothermal energy is heat energy that is stored in the Earth. Solar energy is energy that we get by collecting sunlight via solar collectors and turning it into electrical energy. So the answer is FALSE.

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I assume friction is the only force acting on the book as it slides.

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W ≈ -6.56 J

(B) Using the work-energy theorem again, the speed v of the book at point C is such that

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3 years ago

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Answer:

5 m/s2

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Answer:

Explanation:

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$wsin\theta-f=ma$ where w is the weight of the box. We will use this version of the formula because it will help us answer the second question, which is to solve for a. Filling in:

First we need the weight of the box. Having the mass, we find the weight:

w = mg so

w = 25.14(10) so

w = 251.4 N (I am not paying any attention at all to the sig fig's here, since I noticed no one on this site does!) Now we have the weight. Filling that in:

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f = .25(251.4) so

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a = -10 m/s/s

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Δx = -13.30 m (negative because the box falls this fr below the point fro which it started). Putting all that together in the equation for displacement:

Δx = v₀t + $\frac{1}{2}at^2$ and we are solving for time:

$-13.30=0t+\frac{1}{2}(-10)t^2$ and

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