Imagine that you have obtained spectra for several galaxies and have measured the observed wavelength of a hydrogen emission line that has a rest wavelength of 656.3 nanometers. Here are your results: Galaxy 1: Observed wavelength of hydrogen line is 659.7 nanometers. Galaxy 2: Observed wavelength of hydrogen line is 667.7 nanometers. Galaxy 3: Observed wavelength of hydrogen line is 683.7 nanometers. A) Calculate the redshift, z, for each of these galaxies.
B) From their redshifts, calculate the speed at which each of the galaxies is moving away from us using the Doppler formula. Give your answers as a fraction of the speed of light.
C) Estimate the distance to each galaxy from Hubbleʹs law.
Answers: 1
Geography, 22.06.2019 13:00
Combine like terms. do not forget to use the distributive property to simplify the first term. 2(3y + 5k) - 2k
Answers: 2
Geography, 22.06.2019 19:00
Why did macarthur want to invade china? why did truman oppose this?
Answers: 1
Geography, 23.06.2019 00:30
In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d
Answers: 1
Geography, 23.06.2019 07:00
You are a scientist who has been sent on a special mission to study plants and animals in south asia! your destination is an important forest in eastern india. you need to travel to 17°n latitude and 83°e longitude.
Answers: 1
Imagine that you have obtained spectra for several galaxies and have measured the observed wavelengt...
Social Studies, 22.11.2019 02:31
Health, 22.11.2019 02:31
Mathematics, 22.11.2019 02:31
Geography, 22.11.2019 02:31
English, 22.11.2019 02:31
Mathematics, 22.11.2019 02:31
Biology, 22.11.2019 02:31
History, 22.11.2019 02:31
Mathematics, 22.11.2019 02:31
Mathematics, 22.11.2019 02:31
Geography, 22.11.2019 02:31
Health, 22.11.2019 02:31