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3 years ago

What determines the radiation that an electromagnetic wave emits?

Physics

2 answers:

aniked [119]3 years ago

5 0

Answer:

The matter-composition of the medium through which the light travels determines the nature of the absorption and emission spectrum. These bands correspond to the allowed energy levels in the atoms. Dark bands in the absorption spectrum are due to the atoms in an intervening medium between source and observer.

seropon [69]3 years ago

3 0

The question is a little confusing. An electromagnetic wave is radiation. One doesn’t emit the other. Take another look at the question and write it again please.

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The average speed between earth and the sun is 1.50 x10^8 km. Calculate the average speed of the Earth in its orbit in kilometer

cluponka [151]

Answer:

The average speed of the earth in its orbit is $29.86km/s$

Explanation:

The average distance between the Earth and the Sun is $1.50x10^{8} km$ .

The average speed of the earth in its orbit can be found by the next equation :

$v = \frac{2 \pi r}{T}$ (1)

Where r is the radius and T is the period.

In this case, the orbit of the Earth can be considered as a circle

( $r = 1.50x10^{8}km$ ) instead of an ellipse.

It takes 1 year to the Earth to make one revolution around the Sun. Therefore, its period will be 365.25 days.

Notice that to express the period in terms of seconds, the following is needed:

$365.25d . \frac{86400s}{1d}$ ⇒ $31557600s$

Then, equation 1 can be used:

$v = \frac{2 \pi (1.50x10^{8}km)}{31557600s}$

$v = 29.86km/s$

7 0

3 years ago

Read 2 more answers

a fast charged particle passes perpendicularly through a thin glass sheet of index of refraction 1.5. The particle emits light i

NeX [460]

The minimum speed of the particle is the Speed of light in glass is c/μ=2×108m/s.

<h3>Why is the refractive index important?</h3>

The higher the refractive index the slower the light travels, which causes a correspondingly increased change in the direction of the light within the material. What this means for lenses is that a higher refractive index material can bend the light more and allow the profile of the lens to be lower.

Refractive index values are usually determined at standard temperature. A higher temperature means the liquid becomes less dense and less viscous, causing light to travel faster in the medium.

To learn more about the refractive index visit the link

brainly.com/question/23750645

#SPJ4

7 0

1 year ago

Consider this situation: A baseball player dives head-first

siniylev [52]

Of the forces listed I think the force of him diving and sliding across the infield acted on the player.

I think so because the slowing down was a result of an action, and I don’t think that should count as An action when it is the result of an action. However, the act of diving head-first into second base and sliding across the infield are independent actions and will cause friction, which will act upon the player.

7 0

3 years ago

Un puente de acero de 100 m de largo a 8° C aumenta su temperatura a 24°C ¿Cuánto medirá su longitud? Valor del coeficiente de d

BartSMP [9]

La longitud final del puente de acero es 100.018 metros.

Asumamos que la dilatación térmica experimentada por el puente de acero es pequeña, de modo que podemos emplear la siguiente aproximación lineal para determinar la longitud final del puente de acero ( $L$ ), en metros:

$L = L_{o}\cdot [1+\alpha\cdot (T_{f}-T_{o})]$ (1)

Donde:

$L_{o}$ - Longitud inicial del puente, en metros.
$\alpha$ - Coeficiente de dilatación, sin unidad.
$T_{o}$ - Temperatura inicial, en grados Celsius.
$T_{f}$ - Temperatura final, en grados Celsius.

Si tenemos que $L_{o} = 100\,m$ , $\alpha = 11.5\times 10^{-6}$ , $T_{o} = 8\,^{\circ}C$ y $T_{f} = 24\,^{\circ}C$ , entonces la longitud final del puente de acero es: