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Jet001 [13]
2 years ago
14

Una esfera de aluminio de 0,5cm de radio se introduce en alcohol. Calcular la indicación que marca el diámetro cuando esta dentr

o del alcohol sabiendo que la densidad del aluminio es de 2 690kg/m³ y la del alcohol es de 790kg/m³
Physics
2 answers:
klemol [59]2 years ago
6 0

Answer:

sry I just wanted the points I'm in middle school so I don't know this stuff either but can you give free brainlyest I'm soo close to my next rank I'd really appreciate it if you would

Mama L [17]2 years ago
6 0

Answer:

0.5+690=690.5

Explanation:

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Answer:

I was going to give you the paper where I saw it but since you are not giving enough points I can not give you so I am only going to give you some of these that are here sorry

Explanation:

1.

9^{2} + 12^2 = x^2\\81 + 144= x^2\\\sqrt{225} = \sqrt{x} \\         15=x\\\\ 2.\\x^2+12^2+=13^2\\x^2+144 =169\\x^2 = 25\\\sqrt{x^2 =\sqrt{25\\\\

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3.\\12^2+32^2 = x^2\\34.176= x

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5,12,13

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\frac{x}{4} ,\frac{12}{4} ,\frac{20}{4}\\\\\frac{x}{4},3,5  \\\\x=16\\\\12. \\x^2 + 48^2=50^2\\\\x^2=196\\x=14

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5 0
2 years ago
Two people are sitting on playground swings. One is pulled back 4 degrees from the vertical and the other is pulled back 8 degre
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Answer:

They will come back at the same time.

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The angular velocity equation of ω= \frac{V}{r} where ω is the frequency of the movement, dependent on the angle. But since swings are simple pendulums and their angles of 8 and 4 degrees are small, they will come back to their starting points at the same time.

I hope this answer helps.

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