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AleksAgata [21]
3 years ago
14

What is the answer for this please

Physics
1 answer:
RoseWind [281]3 years ago
7 0

Answer:

NEil bohr

Explanation:

option number 1

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Which statement is supported by the information in the diagram and table below?
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a

Explanation:

a

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21/33
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Answer:

400N

Explanation:

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The table below shows 4 examples of pairs of objects, their masses, and the distance between them. In which example is the gravi
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Answer:

example two

Explanation:

They have the greatest masses and close proximety relative to the rest, (If you have two black holes each with a solar mass only 1 mile away from one another, they will be highly atracted and probly

orbit each other once a second or so. But now lets try to put the earth and moon one half mile away from each other, they orbit each other much much slower then the two black holes, its becuase the gigantic mass of the black holes overwalms the closser distance between earth and the moon

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3 years ago
An experiment in which alpha particles were used to bombard thin sheets of gold foil led to the conclusion that an atom is compo
fiasKO [112]

Answer:

a small dense nucleus with positive charge and the nucleus is surrounding by orbiting electrons.

Explanation:

An experiment in which alpha particles were used to bombard thin sheets of gold foil led to the conclusion that an atom is composed mostly of a small dense nucleus with positive charge and the nucleus is surrounding by orbiting electrons.

8 0
3 years ago
A steel column is 3 m long and 0.4 m diameter. It carries a load of 50 MN so that 5.967 mm is elongates more. Find the modulus o
Alex787 [66]

Answer:

E=2.0*10^{11}N/m^{2}

Explanation:

<u>Relation between stress and Force:</u>

\sigma=\frac{F}{A}=\frac{F}{\pi*d^{2}/4}

<u>Relation between stress and strain:</u>

Young's modulus is defined by the ratio of longitudinal stress σ , to the longitudinal strain ε:

E=\frac{\sigma}{\epsilon}

\epsilon=\frac{\Delta l}{l}

So:

E=\frac{F*l}{\pi*d^{2}/4*\Delta l}=\frac{50*10^{6}*3}{\pi*(0.4^{2}/4)*5.967*10^{-3}}=2*10^{11}N/m^2

8 0
3 years ago
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