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lesya692 [45]
2 years ago
15

What is the theory of the beginning of the Universe?​

Physics
1 answer:
Black_prince [1.1K]2 years ago
5 0

Hi!The theory of the begining of the <u>universe</u><u> is</u><u> </u><u>the </u><u>big </u><u>bang </u><u>theory</u>

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4. Una cuerda de acero de piano mide 1.60 m de longitud y 0.20 cm de diámetro. ¿Cuál es la tensión en la cuerda si se estira 0.2
bazaltina [42]

Answer:

1030.83\ \text{N}

Explanation:

\Delta L = Cambio en la longitud de la cuerda = 0.25 cm

T = tensión en cuerda

A = Área de la cadena = \dfrac{\pi}{4}d^2

d = Diámetro de la cuerda = 0.2 cm

L = Longitud original de la cuerda = 1.6 m

El cambio de longitud de una cuerda viene dado por

\Delta L=\dfrac{TL}{AE}\\\Rightarrow T=\dfrac{\Delta LAE}{L}\\\Rightarrow T=\dfrac{0.25\times 10^{-2}\times \dfrac{\pi}{4}(0.2\times 10^{-2})^2\times 210\times 10^9}{1.6}\\\Rightarrow T=1030.84\ \text{N}

La tensión en la cuerda es 1030.84\ \text{N}.

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2 years ago
HELLPPPP. The metalloid that has three valence electrons is ___________?​
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Answer:

Boron

Explanation:

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When is your weight is equal to mg?<br>​
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Answer:

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3 years ago
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A theory is a framework of ideas and assumptions used to explain some set of observations and to make predictions about the real
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Answer:

All the predictions in the impact theory are true.

Explanation:

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the height of the image ÷ by the height of the object.

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