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Galaxy a Is Located at the North Celestial Pole,while Galaxy

Question 27

Multiple Choice

Galaxy A is located at the North Celestial Pole,while galaxy B is located at the South Celestial Pole.Galaxy A is 100 Mpc from Earth,while galaxy B is 500 Mpc from Earth.What is the relative velocity between them,as observed from Earth?


A) 2.8 x 104 km/s
B) 4.2 x 104 km/s
C) 9.0 x 103 km/s
D) 3.5 x 104 km/s

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