3 years ago

Why plate tectonics is a scientific theory and not a scientific law.

Physics

1 answer:

ser-zykov [4K]3 years ago

7 0

Answer:

We have not drilled to the center of the earth.

Explanation:

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ExtremeBDS [4]

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3 years ago

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AleksandrR [38]

We know, by conservation of energy :

$\dfrac{kx^2}{2}=mgh$

Therefore,

$\dfrac{x_1^2}{x_2^2}=\dfrac{h_1}{h_2}$

Putting given values, we get :

$\dfrac{x_1^2}{x_2^2}=\dfrac{h_1}{h_2}\\\\\dfrac{4.9^2}{x_2^2}=\dfrac{50.2}{2\times 50.2}\\\\x_2^2=2\times 4.9^2\\\\x_2 = 4.9\times \sqrt{2}\\\\x_2=6.93\ cm$

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Hence, this is the required solution.

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2 years ago