Question

Suppose we observe an object that is 10 Mpc away. At what wavelength is the H...

Suppose we observe an object that is 10 Mpc away. At what wavelength is the H line observed if (a) the object has no other motion, (b) the object has an additional motion away from us at 1000 km/s, (c) the object has an additional motion towards us at 1000 km/s.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

PLEASE LIKE.THANK YOU

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
8. a) Let’s say one galaxy is 4 Mpc away from us and another is 16...
8. a) Let’s say one galaxy is 4 Mpc away from us and another is 16 Mpc away. If the nearer one moves 1 Mpc, how far will the more distant galaxy move in the same amount of time? b) How far away will each of the galaxies in part A be after that amount of time has passed? 9. How would a higher value for the Hubble constant affect the calculation of the age of the universe? A lower...
1. You observe an AGN where you measure the MgII line (λ0 = 280 nm) at...
1. You observe an AGN where you measure the MgII line (λ0 = 280 nm) at an observed wavelength of λobs = 336 nm. Assuming a Hubble constant of 70 km s−1 Mpc−1 , what is the distance of this AGN in Mpc? 2. Jupiter has a mass of 2 × 1027 kg. If the Jupiter would collapse into a black hole, what would be its Schwarzschild radius? 3. You measured the redshift of a galaxy to be z= 0.35....
Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of...
Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of the H-alpha line (rest wavelength = 656.3nm) to be: Galaxy 1: 659.4 nm. Galaxy 2: 664.1 nm. Galaxy 3: 675.7 nm. 10. [4pt] Calculate the redshift, z, for each of these galaxies. 11. [4pt] Calculate the radial velocity of each of these galaxies. 12. [4pt] Assuming a Hubble Constant of 66.4 km/s/Mpc, calculate the distance to each of these galaxies (answer in Mpc).
Vega, a star is located in the constellation Lyra, has a H alpha emission line measured...
Vega, a star is located in the constellation Lyra, has a H alpha emission line measured at wavelength observed os 656.240nm. Given that H alpha emission has a resting measurement of wavelength 656.280nm, What is Vega's radial velocity, Vradical, to three significant figures in unites of m/s? is it moving toward us or away from us? C=300,000km/s v=c wavelength observed over= C is 300,000km/s wavelength resting point
Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of...
Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of the H-alpha line (rest wavelength = 656.3nm) to be: Galaxy 1: 659 nm. Galaxy 2: 666.5 nm. Galaxy 3: 676.6 nm. 10. [4pt] Calculate the redshift, z, for each of these galaxies. 11. [4pt] Calculate the radial velocity of each of these galaxies. 12. [4pt] Assuming a Hubble Constant of 69.6 km/s/Mpc, cal- culate the distance to each of these galaxies (answer in Mpc)....
Stars and galaxies in the distance universe are receding from us with a speed proportional to...
Stars and galaxies in the distance universe are receding from us with a speed proportional to their distance away, v = Hr, where H ≈ 73 m/s/Mpc is the Hubble constant. (a) What is the value of H in SI units? SR units? (Mpc = Mega parsec.) (b) Because they are receding from us, light received from distant stars will be red-shifted. It is common to define the dimensionless red-shift parameter z as λ/λ0 ≡ 1 + z. There is...
A 740-kg two-stage rocket is traveling at a speed of 6.40×10^3 m/s away from Earth when...
A 740-kg two-stage rocket is traveling at a speed of 6.40×10^3 m/s away from Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a speed of 2.30×10^3 m/s relative to each other along the original line of motion. Part A: What is the speed of each section (relative to Earth) after the explosion? Part B: What are the direction of each section (relative to Earth) after the explosion? a) both away...
Use the Hubble Law for the expansion of the Universe (Destination 16) to answer the following...
Use the Hubble Law for the expansion of the Universe (Destination 16) to answer the following questions. a) What is the distance to a galaxy with a recession velocity of 8,000 km/s for an assumed Hubble constant of 62 km/s/Mpc? b) You measure the distance to a galaxy to be 64 Mpc and its recession velocity is 7,800 km/s. What Hubble constant would you derive from this galaxy? c) What is the distance to a galaxy for which you measure...
Problem 10:   Suppose a spaceship heading directly away from the Earth at 0.55c can shoot a...
Problem 10:   Suppose a spaceship heading directly away from the Earth at 0.55c can shoot a canister at 0.25c relative to the ship. Take the direction of motion towards Earth as positive. Randomized Variablesv1 = 0.55 c v2 = 0.25 c   50% Part (a) If the canister is shot directly at Earth, what is the ratio of its velocity, as measured on Earth, to the speed of light? μ/c = 50% Part (b) What about if it is shot directly...
Consider a convex mirror with an object placed 20 cm away and a virtual image 15...
Consider a convex mirror with an object placed 20 cm away and a virtual image 15 cm into the mirror. The image appears to be 2 cm tall a) What is the focal length of the mirror? b) How large is the object? c) Adding a convex convex lens at a distance of 10 cm from the object (halfway between the object and the mirror), with a focal length of 6 cm, where would the final image appear? d) Removing...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT