Physics, 27.06.2019 02:50 lariahsanchez
Due wednesday by 11: 59pm points 20 submitting a file upload in this lab you will use hubble's law to find the distances to eight different clusters of galaxies. the galaxy clusters you will use are all abell clusters, (relatively) nearby groups of galaxies named after the astronomer who studied them: george abell. as you learned, hubble's law relates the recessional velocity (v) in km/s to distance (d) in megaparsecs (mpc) for galaxies in our universe: v = h ⋅ d the redshifts of most galaxies in each cluster are easily available from their spectra. you will find the average redshift of galaxies in each cluster, and then convert this to velocity, and then to distance. finally, you will find the lookback time to the most distant cluster. navigate to voyages: distances to galaxies (links to an external site.)links to an external site.. for each cluster in turn, click its link under "first, observe and appreciate" to open it in the skyserver navigate tool. follow the directions under "record the redshift to each cluster" t
Answers: 3
Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 3
Physics, 22.06.2019 05:50
High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.
Answers: 3
Physics, 22.06.2019 10:40
When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is
Answers: 2
Physics, 22.06.2019 12:40
Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
Answers: 2
Due wednesday by 11: 59pm points 20 submitting a file upload in this lab you will use hubble's law t...
Mathematics, 19.11.2020 01:00
Business, 19.11.2020 01:00
Biology, 19.11.2020 01:00
Social Studies, 19.11.2020 01:00
English, 19.11.2020 01:00
Mathematics, 19.11.2020 01:00
Mathematics, 19.11.2020 01:00
Health, 19.11.2020 01:00
Social Studies, 19.11.2020 01:00
Social Studies, 19.11.2020 01:00
Mathematics, 19.11.2020 01:00
Social Studies, 19.11.2020 01:00