The frequency of light emitted from hydrogen present in the Andromeda galaxy has been found to be 0.10% higher than that from hydrogen measured on earth. Is this galaxy approaching or receding from the earth, and at what speed?

Q: Imagine a space vessel traveling at a constant velocity toward a star that is 6.05 ly from the…

A: Length of space vessel=6.05ly Length of passanger=2.60ly

Q: One of the primary goals of the Kepler space telescope is to search for earth like planets. Data…

A: When bodies travel at relativistic speeds, phenomenon, such as time dilation and length…

Q: The frequency of light emitted from hydrogen present in the Andromeda galaxy has been found to be…

A: It is given that the frequency of light emitted from hydrogen present Andromeda is found to be…

Q: Suppose a galaxy is moving away from the Earth at a speed 0.825c . It emits radio waves with a…

A:

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A:

Q: Near the center of our galaxy, hydrogen gas is moving directly away from us in its orbit about a…

A:

Q: Galaxy A is reported to be receding from us with a speed of 0.35c. Galaxy B, located in precisely…

A: a) The speed of the Galaxy A relative to our galaxy.According to Einstein's relativity, the Galilean…

Q: Explain, why does a moving clock appear to run slow?

A:

Q: What two main obstacles prevent us from traveling today throughout the galaxy at relativistic…

A: The first obstacle that prevents us from traveling throughout the galaxy is that it is the…

Q: assuming no molecules escape or are added, what happens to the masses of water in a pot when it…

A: Relativistically, the total energy of a system is conserved. According to Einstein's relativity…

Q: A galaxy is receding from earth at a velocity of 0.08 c, 8% of the speed of light. What wavelength…

A: According to the Doppler effect, ∆λλ=vc=0.08cc=0.08…

Q: A spacecraft transmits a microwave signal with a wavelength of 1.25 cm. If the wavelength of the…

A: Given: The wavelength of microwave signal=λ0=1.25 cm The wavelength of signal received on earth…

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A: Speed of the ship moving away v=0.291c and speed of the torpedo with respect our ship u=0.343c where…

Q: n enemy spacecraft attempts to escape from your spacecraft by moving away from you at 0.273 of the…

A: Given data:-  The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away…

Q: A distant quasar is found to be moving away from the earth at 0.80c. A galaxy closer to the earth…

A: Given information: The velocity of the quasar, u=0.80c The velocity of the galaxy, v=0.20c

Q: A distant star is traveling directly away from Earth with a speedof 49,500 km>s. By what factor…

A: The speed of the star, u = 49500 km/s = Consider that the original wavelength is  and observed…

Q: If you were on Earth monitoring a person in a rocket ship traveling away from Earth at a speed close…

A: Given: If you were on Earth monitoring a person in a rocket ship traveling away from Earth at a…

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A:

Q: An alien spaceship travels at v=0.999c-299482km/s (where 'c' is the speed of light equal to 299782…

A:

Q: An interstellar space probe is launched from Earth. After a brief period of acceleration, it moves…

A: The expression of time for the given case where the batteries on the space probe last as measured by…

Q: If a flashing light source moves toward you fast enough so that the duration between flashes is half…

A: It is given that a flashing light source is moving towards us such that the duration between the…

Q: Bianca is standing at x = 600 m. Firecracker 1, at the origin, and firecracker 2, at x = 900 m,…

A:

Q: The speed of light in water is 2.30 × 108 m/s. Suppose an electron is moving through water at 2.50 ×…

A:

Q: Astronomers determine that a particular star in our galaxy is moving toward Earth at a speed of…

A:

Q: Processes at the center of a nearby galaxy cause the emission of electromagnetic radiation at a…

A:

Q: At what speed is an electron’s total energy 50% more than its rest energy?

A: GIVEN :-            Total energy is 50% more than its rest energy.            i.e  Total energy =…

Q: A spaceship measures bright flashes of light from a distant star. The spacecraft now heads toward…

A:

Q: At what speed will a 1 m rule be moving if it its apparent length is measured by a stationary…

A:

Q: A spacecraft transmits a microwave signal with a wavelength of 1.25 cm.  If the wavelength of the…

A: When the source is moving away from the Earth then the wavelength is given by: λ'=1+vscλ    ...(1)…

Q: You have been posted to a remote region of space to monitor traffic. Near the end of a quiet shift,…

A:

Q: How did Edwin Hubble use the concepts of the Doppler Effect to determine the speed/direction of…

A:

Q: A galaxy is receding from earth at a velocity of 0.1 c, 10% of the speed of light. What wavelength…

A:

Q: An out-of-control alien spacecraft is diving into a star at a speed of 1.0 x 108 m/s. At what speed,…

A: According to the Einstein principle of relativity the speed of the light will be always same in all…

Q: If you were in a rocket ship traveling away from Earth at a speed close to the speed of light, what…

A: As you travelling away from the Earth at a speed close to the speed of the light, you would notice…

Q: To whom does an object seem greater in length, an observer moving with the object or an observer…

A: In case 1 - Observer moving with the object. As, in this observer is moving with an object his and…

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.