How fast and in what direction must galaxy A be moving relative to us if an absorption line found at 550 nm (green) for a stationary galaxy is shifted to 450 nm (blue) for A? (10
Q: If p = 2.7 x 10-27 kgm-3, what is the radius of curvature Ro of Einstein's static universe? How long…
A: Given: Density,ρ=2.7×10-27kg/m3Speed of light,c=3×108m/sEinstein's constant,κ=1.86×10-26m/kg Albert…
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Q: An optical spectrum of a galaxy has a magnesium absorption line at a wavelength of 531.3 nm. Given…
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Q: The bright radio galaxy, 3c84, is observed to be moving away from the Earth at such high speed that…
A: The formula for Relativistic Doppler effect in wavelength can be expressed as below, Here λ and λₒ…
Q: (b) Draw the shape of the Milky Way for a spaceship with a velocity of 20%, 50%, and 90% of the…
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Q: An 800 nm spectral line when observed from a galaxy is shifted to 920 nm. Calculate the redshift.
A: Redshift is the process by which light from moving sources is shifted to longer wavelengths.…
Q: Which of the aircuts below will give you Vab=7V? Select one: O V Ob. 3V OL 3V d. 3v 5V 1V БУ SV IV…
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Q: Suppose a galaxy is moving away from Earth at a speed 0.78c. It emits radio waves with a wavelength…
A: Doppler effect is the change in frequency and wavelength of a wave due to the motion of the source…
Q: Given the redshift of a galaxy is 0.440 the observed wavelength is 480 nm. What is the actual…
A: When the source of electromagnetic radiation is moving away from the observer the radiation will…
Q: How does the Doppler effect on sound waves differ from the Doppler effect on electromagnetic waves?…
A: The Doppler Effect is defined as the change in frequency observed by the observer in the case of…
Q: What is the recession speed of a galaxy cluster which is 50Mpc away from Earth? Is the light from…
A: Hubble Law It state that distant galaxies are moving away from our earth with a recession…
Q: A 2 GHz radio signal is detected from a galaxy as 0.86GHz. Estimate the relative velocity.
A: Like all waves light waves also get Doppler shifted. In the case of light waves, the Doppler shift…
Q: Distances to very remote galaxies are estimated based on their apparent type, which indicate the…
A: The relation of brightens of the star is inversely proportional to the square root of the distance…
Q: n. Estimate the relative velocity.
A: Given: Lo=2m L=0.75m To find: Relative velocity
Q: When a distant galaxy is observed the violet hydrogen line of 410.173 nm was recorded at 610 nm.…
A: When it comes to light the Doppler effect has to be modified. Light does not require any medium to…
Q: If a galaxy is 30 Mpc away from Earth and recedes at 400 km/s, what is Hubble's constant?
A: It is observed that galaxies are moving away from each other instead of coming closer. Based on…
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Q: If we knew that a distant galaxy were 8.56 x 1021 meters away from earth, what velocity could we…
A: The velocity of a distant galaxy can be calculated using Hubble's Law. Hubble's Law states that the…
Q: A galaxy is oberverd to have emission lines of blue hydrogen lines of 434 nm. What will be the…
A: When the relative speed between observer and source gets close to the speed of light, relativistic…
Q: 17). If you were to live another 65 years and there was a starship ready to go right now, how fast…
A: **As per our company guidelines we are supposed to solve only one question (if there are multiple…
Q: If a galaxy is 10.0 Mpc away from Earth and recedes at 520 km/s, what is Hubble's constant?
A: Edwin Hubble in his observations found that the galaxies were moving away from us instead of getting…
Q: Based on Figure 1 below, which galaxies are moving away from us the fastest? Velocity (km/sec) 2000…
A: first option is correct
Q: If an O-type star and our galaxy were at the same distance, which would have a greater magnitude? a)…
A: Given: The O-type star and our galaxy at same distance. The apparent magnitude decreases with the…
Q: Can we measure distances to other galaxies using parallax? Why or why not?
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Q: If a galaxy is 8.9 Mpc away from Earth and recedes at 497 km/s, what is H, (in km/s/Mpc)? km/s/Mpc…
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Q: 3C 273 was the first quasar identified (1963). When we look at its chemical spectrum, we see that…
A: Given:- λobs = 759 nm.λ0 = 656 nm
Q: How can forces be unified?
A: According to the Big Bang Theory, a single force existed at the beginning of time. As the Universe…
Q: The hypervelocity star S5HVS1 has a redshifted Hβ line (rest wavelength of 486.135 nm) observed at…
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Q: How can you explain the fact that the Andromeda Galaxy appears to be approaching us rather than…
A: Each element emits photons only at a certain wavelength. They form either emission or absorption…
Q: Given the age of a universe as 15.6 billion years. A galaxy is found to be moving at 620 km-s-1 from…
A: Hubble time is the amount of time it took for a universe to reach its current state. For calculating…
Q: A galaxy is moving away from Earth. The "blue" hydrogen line at 434 nm emitted from the galaxy is…
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Q: 6. If a spiral galaxy is 20' in diameter and you measure its distance to be 1 Mpc, what is its…
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Q: 6) The redshift of a galaxy is observed to be 1.5. Calculate the recessional velocity of the galaxy.
A: Redshift takes place when the source is moving away from the observer. This reduces the frequency…
Q: If a galaxy is 9.0 Mpc away from Earth and recedes at 488 km/s, what is H, (in km/s/Mpc)? | km/s/Mpc…
A: Hubble discovered that galaxies appear to move away from Earth and the velocity of recession (v) is…
Q: 4) Calculate the redshift of a galaxy with a recessional velocity of 0.68c. (
A: When a celestial object is moving away from the observer the light observed from the object will…
Q: If a galaxy is 9.0 Mpc away from Earth and recedes at 510 km/s, what is H? What is the Hubble t
A: Hubble's law states that galaxies are moving away from Earth and the farther they are faster they…
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