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...
The sun (and the earth with it) are traveling at 2.00×104 km/s toward a star that...
The sun (and the earth with it) are traveling at 2.00×104 km/s toward a star that is 45.0 light years away. (A light year is the distance light travels in one year.) If an astronomer on earth measures light of wavelength 522.4 nm from this star, what frequency would an observer at rest with respect to the star measure for the light it emits? If an astronomer on earth measures light of wavelength 522.4 nm from this star, what wavelength...
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?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT