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Kryger [21]
3 years ago
13

If the wavelength of the red line of hydrogen coming from a galaxy is 654.3 nanometers instead of the normal 656.3 nanometers, i

s the galaxy moving towards the Earth or away from the Earth, is it red shifted or blue shifted, and how fast is it moving
Physics
1 answer:
Delicious77 [7]3 years ago
5 0

Answer:

The Doppler effect says that, if the source of light is moving towards the viewer, then the light will turn to the blue side (the wavelength decreases) if the source of light is moving away, then the light will turn to the red side (the wavelength will increase)

In this case, we have that the light that normally has a wavelength of 654.3 nm, now has 656.3 nm. So we can see that the wavelength increased, which means that the galaxy is moving away from the Earth, is red shifted and the velocity can be found by the equation:

(λ - λ₀)/λ₀ = v/c

Here we have that:

λ = 656.3 nm

λ₀ = 654.3 nm

c = 3.10^6 m/s

and v is the velocity of the galaxy.

(the fact that the units are different does not matter because the units cancel with the divisions)

(656.3 nm - 654.3 nm)/654.3 nm = v/3*10^6m/s

0.003*3*10^6m/s = v = 9000 m/s

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The gravitational force is s type of force that has the ability to attract any two objects having mass. The gravitational force will be 4.16\times10^{23}.

<h3>What is the gravitational force?</h3>

The gravitational force is s type of force that has the ability to attract any two objects with mass. Gravitational force tries to pull two masses towards each other.

                      F= G\frac{m_1m_2}{r^{2} }

Given,

mass of the sun (m_1)= 1.99\times10^{23} kg

mass of Jupiter(m_2)= 7.79\times10^{8} kg

distance between the sun and Jupiter (r)= 1.90\times10^{27} m

F= G\frac{m_1m_2}{r^{2} }\\\\\\F=4.16\times10^{23}\times\frac{1.99\times10^{23}\times7.79\times10^{8}}{({1.90\times10^{27})^2} }

F= 4.16\times(10)^{23}   Newton

Hence the gravitational force between the sun and Jupiter will be 4.16\times10^{23}

To learn more about  gravitational force refer to the link:

brainly.com/question/24783651

4 0
2 years ago
La mascota de felipe esta jugando en el parque despues de un tiempo esta agotado de tanto correr. Felipe conoce que el perro con
MatroZZZ [7]

Responder:

6.704 m / s

Explicación:

Se dice que el trabajo se realiza cuando la fuerza aplicada a un objeto hace que el objeto se mueva. Primero necesitamos calcular la distancia recorrida por el perro usando la fórmula del trabajo realizado.

Trabajo realizado = Fuerza × distancia

Distancia = Trabajo realizado / Fuerza

Distancia = W / mg

S = 176/8 × 9,81

S = 176 / 78,48

S = 2,24 m

Dada la velocidad inicial u = 3.6km / h

Convertir a m / s

= 3.6km × 1000m / 1h × 3600

= 3600/3600

= 1 m / s

u = 1 m / s

Usando la ecuación de movimiento

v² = u² + 2gS para obtener la velocidad final v:

v² = 1² + 2 (9,81) (2,24)

v² = 1 + 43,9488

v² = 44,9488

v = √44,9488

v = 6,704 m / s

Por tanto, la rapidez final del perro es de 6,704 m / s

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Which of the following elements is in the same period as phosphorus?
Arte-miy333 [17]
The answer is B. magnesium I am pretty sure
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Why is detergent mixed in a toothpaste?
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8 0
3 years ago
How would you determine the volume of an irregular shaped object.
Archy [21]
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3 years ago
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