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PSYCHO15rus [73]
3 years ago
15

PLEASE HELPPP Count the number of atoms of each element in this molecule: 2H2K(OH2)2​

Physics
2 answers:
yulyashka [42]3 years ago
7 0

Answer:

H = 6 atoms

K= 2 atoms

O = 2 atoms

sineoko [7]3 years ago
3 0

Answer:

H is 6 atoms K is2 atoms and O is 2 atoms

Explanation:

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<em>y</em> = <em>v</em>₀ <em>t</em> - 1/2 <em>g</em> <em>t</em> ²

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<em>v</em> = <em>v</em>₀ - <em>g t</em>

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-2.72 m = <em>v</em>₀ <em>t</em> - 1/2 <em>g</em> <em>t</em> ²

-7.94 m/s = <em>v</em>₀ - <em>g t</em>

Solve for <em>t</em> in the second equation:

<em>t </em>= (<em>v</em>₀ + 7.94 m/s)/<em>g</em>

Substitute this into the first equation and solve for <em>v</em>₀ :

-2.72 m = <em>v</em>₀ (<em>v</em>₀ + 7.94 m/s) /<em>g</em> - 1/2 <em>g</em> ((<em>v</em>₀ + 7.94 m/s)/<em>g</em>)²

-2.72 m = <em>v</em>₀²/<em>g</em> + (7.94 m/s) <em>v</em>₀/<em>g</em> - 1/2 (<em>v</em>₀ + 7.94 m/s)²/<em>g</em>

2 (-2.72 m) <em>g</em> = 2<em>v</em>₀² + 2 (7.94 m/s) <em>v</em>₀ - (<em>v</em>₀ + 7.94 m/s)²

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<em>v</em>₀² = 9.73 m²/s²

<em>v</em>₀ = 3.12 m/s

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3 years ago
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