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aniked [119]
3 years ago
15

What is the meaning of galaxy?

Physics
2 answers:
mariarad [96]3 years ago
5 0
<span>a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.</span>
SCORPION-xisa [38]3 years ago
5 0
A galaxy is a group of planets and stars. :D Hope this helps! ;3
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Guys can someone help me
tensa zangetsu [6.8K]

your answer will be B . becasue light can be transformed into heat .

4 0
2 years ago
If the temperature of a volume of ideal gas increases for 100°C to 200°C, what happens to the average kinetic energy of the mole
mina [271]

Answer:\Delta E=2.0715\times 10^{-21} J

Explanation:

Given

Temperature of the gas is increased from 100 to 200

Also we know that average kinetic energy of the molecules is

E=\frac{3}{2}\cdot \frac{R}{N_A}T

Where

R=Gas constant

N_A=Avogadro's number

T=Temperature in kelvin

\frac{R}{N_A}=1.381\times 10^{-23}

So kinetic energy increases by

\Delta E=\frac{3}{2}\times 1.381\times 10^{-23}\left ( 200-100\right )

\Delta E=2.0715\times 10^{-21} J

8 0
3 years ago
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matrenka [14]
A is the answer your looking for
8 0
3 years ago
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if a bowling ball hits a wall a force of 6 N, the wall exerts a force of how much back. on the bowling ball
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It would exert the same back right?
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The wavelengths for visible light rays correspond to which of these options?
ryzh [129]

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sorry about the other person but its b

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