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A beam of light shining through a dense molecular cloud is diminished in intensity by a factor of 2 for every 5 pc it

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A beam of light shining through a dense molecular cloud is diminished in intensity by a factor of 2 for every 5 pc it travels. Part A By how many magnitudes is the light from a background star dimmed if the total thickness of the cloud is 80 pc? Express your answer using two significant figures. Am = Submit Previous Answers Request Answer Incorrect; Try Again; 5 attempts remaining Provide Feedback ? Review Next >

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