How long does the journey take according to the cosmic ray
A cosmic ray travels 60 km through the earth's atmosphere in 390 ?s, as measured by experimenters on the ground.
How long does the journey take according to the cosmic ray?
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A cosmic ray travels 60 km through the earth's atmosphere in 390 ?s, as measured by experimenters on the ground. How long does the journey take according to the cosmic ray?
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