What speed should a galaxy move with respect to us so that the sodium line at 58 9.0 nm is observed at 58 9.6 nm?

Q: In the laboratory, one of the lines of sodium is emitted at a wavelength of 590.0 nm. In the light…

A:

Q: Distances to local galaxies are determined by measuring the brightness of stars, called Cepheid…

A: Absolute brightness is a constant and is 10 parsecs from Earth whereas measured brightness depends…

Q: All galaxies farther away than about 50×106 ly exhibit a red shift in their emitted light that is…

A: Red shift in the emitted light is caused due to the relative motion between the observer and the…

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: Your spaceship zips past a spherical asteroid at 0.80c. What is the shape of the asteroid from your…

A: Shape of the asteroid from your point of view

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 K⁻ meson has a rest lifetime of 1.24 x 10⁻⁸ s. If one of these particles is created in a particle…

A: Formula of time dilation is as follows: ∆t'=∆t1-v2c2…

Q: A 100m long (as measured in the spaceships frame) spaceship passes you at a speed of 0.6c. The…

A: Data  we have  length,L=100m velocity,v=0.6c Time,∆t'=5s

Q: Galaxy A is moving away from us with a speed of 0.75c relative to the earth. Galaxy B is mobbing…

A: Speed of galaxy A with respect to earth is vA = 0.75c Speed of galaxy B with respect to earth is vB…

Q: How fast must a pion be moving on average to travel32 m before it decays? The average lifetime, at…

A: Formula of average speed is as follows; v=d∆t…

Q: Particles called pi mesons are created by accelerator beams. If these particles Tavel at 2.80*10^8…

A: Given data The speed of the pi mesons is given as v = 2.8 x 108 m/s. The time interval that pi…

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: Consider two spaceships moving relative to each other. The relative velocity of each spaceship is…

A:

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 meter stick moves past you, with its motion relative to you parallel to its long axis. If you…

A:

Q: The great astronomer Edwin Hubble discovered that all distant galaxies are receding from our Milky…

A:

Q: On average, how far away are galaxies that are moving away from us at 2.0% of the speed of light?

A:

Q: In the figure above, the direction of the Lorentz force on a positive particle with velocity v in…

A: THE VALUES PROVIDED IN THE QUESTION ARE AS FOLLOWS- MEGNETIC FIELD IS IN SIDE OF PLANE  VELOCITY IS…

Q: Explain Lorentz transformstions.

A:

Q: Sirius is about 9.00 ly from Earth. To reach the star by spaceship in 15.0 y (ship time), how fast…

A:

Q: rocket ship traveling near the speed of light appears to a stationary observer to shorten with…

A: Given :) Actual length=200 m Required:) apparent length if it is travelling with v=0.99 c

Q: Suppose a distant quasar has a redshift of 6. At what fraction of the speed of light is the quasar…

A:

Q: Interactive LearningWare 28.10 reviews the concepts that play roles in this problem. The distance…

A: Let us say that d∘=23000 lyand this is the distance of the earth from the center of our galaxy…

Q: lve the following problem using Lorentz transformations: Two jets of material are ejected in…

A: Given:-  Two jets of material are ejected in opposite directions from the center of a radio galaxy.…

Q: In the lab, one of the lines of sodium is emitted at a wavelength of 590 nm. In the light from a…

A:

Q: Use the distance and velocity data  tofind the rate of expansion as a function of distance.(b) If…

A: a)

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

A:

Q: Hubble's law can be stated in vector form as v = HR. Outside the local group of galaxies, all…

A:

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

A:

Q: The red-shift of a galaxy observed by us corresponds to a speed of 50000 km/s. How far is the galaxy…

A:

Q: A space shuttle passes over the Earth at v = 0.90c speed. If the length of space shuttle observed by…

A: Speed of the shuttle is v = 0.90c Length of the shuttle is lo = 100 m

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.