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A cosmic ray travels 59.1

A cosmic ray travels 59.1 km through the earth's atmosphere in 507 μs, as measured by experimenters on the ground. How long
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows.A Cosmic Flash There was
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows. A Cosmic Flash There
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows.A Cosmic Flash There was
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Read "A Cosmic Flash" ("A Cosmic Flash", from Illuminate) and then answerthe question that follows. A Cosmic Flash There was no
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows.A Cosmic Flash There was
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows.A Cosmic Flash There was
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows.A Cosmic Flash There was
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows.A Cosmic Flash There was
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Read "A Cosmic Flash” ("A Cosmic Flash”, from Illuminate) and then answer the question that follows. A Cosmic Flash There
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