The Hydra galaxy is moving away from Earth at
To determine the fraction of the speed of light.
Answer to Problem 56A
The fraction is 5.
Explanation of Solution
Given data:
Speed of light (v)= 6×107 m/s.
Formula used:
Calculation:
The fraction of the speed of light is determined by the ratio of the speed of light in a vacuum to the speed of light through other mediums. Because of the speed of light in a vacuum is the reference value.
We know the speed of light c =3×108m/s.
= 5.
The fraction of speed of light has no units.
Conclusion:
The fraction of speed of light is 5.
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