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irakobra [83]
3 years ago
14

Which statement best describes perigee?

Physics
2 answers:
ioda3 years ago
8 0
B. The closest point in the moon's orbit to Earth. Peri+Geo=close+Earth. The closest thing to the earth is the moon, therefore Perigee has to do with the moon being close to the Earth.
Margarita [4]3 years ago
5 0
A. is meaningless.
B. is perigee.
C. is apogee.
D. is perihelion.
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Answer:

It was generally believed that mountains were produced by vertical forces

Explanation:

                   The main view of the world worked geologically prior to the 1960s was that the mountains were formed by the vertical forces of nature.

                    The early people prior to 1960s believed in many different natural phenomenons and they give their own reasons for their occurrence. But later many researchers and geophysicists studied the formation of the earth and came with possible answers to these questions.

Thus the answer is  

" It was generally believed that mountains were produced by vertical forces."

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Which statement about nuclear fusion is correct? A. Two hydrogen electrons become protons during fusion. B. Helium nuclei can fu
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Answer:

A is the answer

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Yes, Two hydrogen electrons become protons during fusion.

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2 years ago
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To solve this problem we will apply the principle of conservation of energy. For this purpose, potential energy is equivalent to kinetic energy, and this clearly depends on the position of the body. In turn, we also note that the height traveled is twice that of the rigid rod, therefore applying these concepts we will have

KE = PE

\frac{1}{2} mv^2 = mgh

v = \sqrt{2gh}

v = \sqrt{2(9.8)(2(55.8*10^{-2}))}

v = 4.67m/s

Therefore the minimum speed at the bottom is required to make the ball go over the top of the circle is 4.67m/s

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mihalych1998 [28]

Answer: 21

Explanation:

because 9 + 10 = 21

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