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QUESTION
An intergalactic rock star bangs his drum every 1.10 s. A person on earth measures that the time between beats is 2.50 s. How fast is the rock star
An intergalactic rock star bangs his drum every 1.10 s. A person on earth measures that the time between beats is 2.50 s. How fast is the rock star moving relative to the earth? Any help would be greatly appreciated.
