College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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The great astronomer Edwin Hubble discovered that all distant galaxies are receding from our Milky Way Galaxy with velocities proportional to their distances. It appears to an observer on the Earth that we are at the center of an expanding universe. The figure illustrates this for five galaxies lying along a straight line, with the Milky Way Galaxy at the center.
B) Using the data from the figure, calculate the velocity of galaxy 3 relative to galaxy 2 in km/s.
C) Using the data from the figure, calculate the velocity of galaxy 4 relative to galaxy 2 in km/s.
D) Using the data from the figure, calculate the velocity of galaxy 5 relative to galaxy 2 in km/s.
E) Using the data from the figure, calculate the velocity of galaxy 1 relative to galaxy 5 in km/s.
F) Using the data from the figure, calculate the velocity of galaxy 2 relative to galaxy 5 in km/s.
G) Using the data from the figure, calculate the velocity of galaxy 3 relative to galaxy 5 in km/s.
H) Using the data from the figure, calculate the velocity of galaxy 4 relative to galaxy 5 in km/s.
Transcribed Image Text:Galaxy 1
300 Mly
Galaxy 2
150 Mly
Galaxy 3 Galaxy 4
190 Mly
MW
v₁ = -4500 km/s v₂ = -2200 km/s
Galaxy 5
450 Mly
v₁ = 2830 km/s v₁ = 6700 km/s
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