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Tanya [424]
4 years ago
8

How did the planets form?

Chemistry
2 answers:
blondinia [14]4 years ago
8 0
None of these answers are correct
lina2011 [118]4 years ago
4 0

Answer:

its b

Explanation:

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The second one ......
6 0
3 years ago
The emission of a Beta particle has the effect of...? A. Decreasing mass by one unit /B.Increasing mass by one unit / C. - No ch
vodomira [7]
The emission of a beta particle has the effect of : C. No change in mass

basically, beta particle has a very very little mass compared to the proton and  neutrons, so  little to the point that it never considered as a change in mass. But it does decreases the charge of atom

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3 0
3 years ago
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What is the third most common gas found in the air we breathe?
erastovalidia [21]
Argon is the third most common gas found in the air we breathe. The air we breathe has approximately 78% nitrogen and 21 % oxygen. The third more abundant gas in the air we breathe is Argon. It is available in a very small quantity in the air that we breathe. The percentage of the gas argon is about 0.9% in the air that we breathe. There are several other gases also present in the air that we breathe, but they are found mostly in negligible amounts.



7 0
3 years ago
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If you want to lift a 30-kg box to a height of 1 m, how much work will it take?
natta225 [31]

Explanation:

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7 0
3 years ago
F
Airida [17]

Answer:

Final pressure = 362.7 Pa

Explanation:

Given that,

Initial volume, V₁ = 930 ml

Initial pressure P₁ = 156 Pa

Final volume, V₂ = 400 mL

We need to find the final pressure. We know that the relation between volume and pressure is inverse i.e.

V\propto \dfrac{1}{P}\\\\\dfrac{V_1}{V_2}=\dfrac{P_2}{P_1}\\\\P_2=\dfrac{V_1P_1}{V_2}\\\\P_2=\dfrac{930\times 156}{400}\\\\P_2=362.7\ Pa

So, the final pressure is equal to 362.7 Pa.

3 0
3 years ago
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