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satela [25.4K]
3 years ago
13

Indique dos diferencias entre la filtración por gravedad y la filtración al vacío

Chemistry
1 answer:
DerKrebs [107]3 years ago
7 0

Answer: Sorry, I do not understand.

Indique dos diferencias entre la filtración por gravedad y la filtración al vacío.

?

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A common radio wavelength observed coming from astronomical objects is 21 cm. What temperature is associated with this radiation
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Answer:

The temperature associated with this radiation is 0.014K.

Explanation:

If we assume that the astronomical object behaves as a black body, the relation between its <em>wavelength</em> and <em>temperature</em> is given by Wien's displacement law.

\lambda_{max}=\frac{b}{T}

where,

λmax is the wavelength at the peak of emission

b is Wien's displacement constant (2.89×10⁻³ m⋅K)

T is the absolute temperature

For a wavelength of 21 cm,

T=\frac{b}{\lambda _{max} } = \frac{2.89 \times 10^{-3} m.K  }{0.21m} =0.014K

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