3 years ago

What is acceleration?

Physics

1 answer:

kvv77 [185]3 years ago

4 0

C) The change of velocity over time

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Calculate the wavelength and frequency at which the intensity of the radiation is a maximum for a blackbody at 298 K. You will n

Juliette [100K]

Answer:

Wavelength, $\lambda=9.72\times 10^{-6}\ m$

Frequency, $f=3.08\times 10^{13}\ Hz$

Explanation:

We need to find the intensity of the radiation is a maximum for a black body at 298 K. It can be calculated using Wein's displacement law. It is given by :

$\lambda T=2.898\times 10^{-3}\ m-K$

$\lambda=\dfrac{2.898\times 10^{-3}}{T}$

Here, T = 298 K

$\lambda=\dfrac{2.898\times 10^{-3}}{298}$

$\lambda=9.72\times 10^{-6}\ m$

If f is the frequency of black body radiation. It is given by :

$f=\dfrac{c}{\lambda}$

$f=\dfrac{3\times 10^8}{9.72\times 10^{-6}}$

$f=3.08\times 10^{13}\ Hz$

Hence, this is the required solution.

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3 years ago

¿Diferencias entre movimiento vertical y horizontal?

Ronch [10]

Answer:

Los movimientos verticales o circulación convectiva consisten en un intercambio de lugar entre el aire caliente de las capas bajas y el aire frío de las superiores. Este movimiento se debe a la diferencia de densidades de las distintas masas de aire. Los movimientos horizontales se basan en las diferencias de presión.

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3 years ago

Read 2 more answers

1. A proton has a ____ charge <br> Positive <br> Negative <br> Or neutral

Westkost [7]

Answer:

Positive

Explanation:

Protons have positive charges

Electrons have negative charges and

Neutrons have neutral charges.

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