Stars Nearby to Our Sun Have an Average Relative Speed

question 17

Multiple Choice

Stars nearby to our sun have an average relative speed of about 70,000 km/hour. How fast is that in km/s?

• A)about 1200 km/s
• B)about 4.2 million km/s
• C)about 20 km/s
• D)about 3000 km/s

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