Question

Astronomers determine that a particular star in our galaxy is moving toward Earth at a speed...

Astronomers determine that a particular star in our galaxy is moving toward Earth at a speed of 723.0 km/s with respect to the Earth. If Earth receives a wavelength λ = 686.1 nm from this star, what was the wavelength emitted by the star?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider a spiral galaxy that is moving directly away from Earth with a speed V =...
Consider a spiral galaxy that is moving directly away from Earth with a speed V = 3.040×105 m/s at its center, as shown in the figure(Figure 1). The galaxy is also rotating about its center, so that points in its spiral arms are moving with a speed v = 6.650×105 m/s relative to the center. If light with a frequency of 8.213×1014 Hz is emitted in both arms of the galaxy, what frequency is detected by astronomers observing the arm...
A star whose surface temperature is 4000 K has a peak wavelength of 725 nm, according...
A star whose surface temperature is 4000 K has a peak wavelength of 725 nm, according to Wien’s Law. If this star is in the Andromeda Galaxy, which is moving toward Earth at about 120 km/s, what would an observer on Earth see as the peak wavelength for this star?
Show all calculations and formulas used. The closest star to earth is 4.253 light years away....
Show all calculations and formulas used. The closest star to earth is 4.253 light years away. How far is that in miles? The fastest space probe ever designed has a speed of about 58,000 km/h. How long would it take it to cross the length of the milky way galaxy? If the parallax angle of a star is 0.000075% then how far away is that star? What is the relative brightness of the Sun as seen from Saturn as compared...
Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A...
Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A ring of material orbits this massive object; the ring has a diameter of about 15 light years and an orbital speed of about 140 km/s . A: Determine the mass of the massive object at the center of the Milky Way galaxy. Give your answer in kilograms. B: Give your answer in solar masses (one solar mass is the mass of the sun). C:...
Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A...
Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A ring of material orbits this massive object; the ring has a diameter of about 10 light years and an orbital speed of about 110 km/s . a) Determine the mass of the massive object at the center of the Milky Way galaxy. Give your answer in kilograms. b) Give your answer in solar masses (one solar mass is the mass of the sun). c)...
Astronomers have observed a small, massive object at the center of our Milky Way Galaxy. A...
Astronomers have observed a small, massive object at the center of our Milky Way Galaxy. A ring of material orbits this massive object; the ring has a diameter of about 12 light-years and an orbital speed of about 160 km/s. A.) Determine the mass M of the massive object at the center of the Milky Way Galaxy. Give your answer in kilograms. B.) Give your answer in solar masses (one solar mass is the mass of the sun). C.) Observations...
A distant galaxy emits light that has a wavelength of 620 nm. On Earth, the wavelength...
A distant galaxy emits light that has a wavelength of 620 nm. On Earth, the wavelength of this light is measured to be 623 nm. a. Is this galaxy approaching or receding from the earth? b. Find the speed of the galaxy relative to earth. c. If this galaxy also emits another EM wave whose wavelength is 1025nm, what wavelength would we expect to measure on Earth for this wave?
Two meteoroids are 2.0×105 km from Earth's center and heading straight toward Earth. One is moving...
Two meteoroids are 2.0×105 km from Earth's center and heading straight toward Earth. One is moving at 12 km/s , the other at 20 km/s . a. At what speed will the first meteoride strike the Earth? b. At what speed will the second meteoride strike the Earth?
A radiation known as H? (?=434.1 nm) is used to determine the motion of distant galaxies....
A radiation known as H? (?=434.1 nm) is used to determine the motion of distant galaxies. The wavelength of H? from a galaxy is 462.0 nm, as observed on Earth. (a) What is the minimum speed of the galaxy relative to Earth? (b) Is the galaxy moving away from (enter 0) or approaching (enter 1) Earth?
A spectral line from a star is observed to have a wavelength of 656.5 nm. The...
A spectral line from a star is observed to have a wavelength of 656.5 nm. The rest wavelength of this line is 656.8 nm. (a) What is the speed of the star, and (b) is it approaching or receding from the Earth? (c) If the star’s emitted wavelength is the same as the rest value, what is happening?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • Consider insertsort. Suppose that the input array A has 1% probability to be monotonically decreasing. Show...
    asked 8 minutes ago
  • Your company is thinking of introducing a Bring Your Own Device (BYOD) policy. You have been...
    asked 14 minutes ago
  • Attached is the file GeometricObject.java. Include this in your project, but do not change. Create a...
    asked 16 minutes ago
  • Suppose the number of cars in a household has a binomial distribution with parameters n =...
    asked 19 minutes ago
  • HR needs some information on the new interns put into a database. Given an id, email,...
    asked 40 minutes ago
  • Problem solving strategies Questions years = input("Enter a number of years and I'll tell you how...
    asked 45 minutes ago
  • Calculate ?Hrxn for the following reaction: CH4(g)+4Cl2(g)?CCl4(g)+4HCl(g) Use the following reactions and given ?H?s. C(s)+2H2(g)?CH4(g)?H=?74.6kJC(s)+2Cl2(g)?CCl4(g)?H=?95.7kJH2(g)+Cl2(g)?2HCl(g)?H=?184.6kJ Express...
    asked 51 minutes ago
  • ASCII (American Standard Code for Information Interchange) has an encoding for every character of the alphabet,...
    asked 1 hour ago
  • Is home confinement with electronic monitoring a deterrent? Are there negatives to being confined to one’s...
    asked 1 hour ago
  • Social hostility can have severe lasting effects of interperpersonal relationship during our adolescence years, which if...
    asked 1 hour ago
  • - A series RLC circuit has R=15 ?, L=1.5 H, and C=15 ?F. (a) For what...
    asked 1 hour ago
  • TV Circuit has 30 large-screen televisions in a warehouse in Erie and 60 large-screen televisions in...
    asked 1 hour ago