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What fraction of a beam of 7.7 - MeV alpha particles incident upon a golf foil 3.0 x 10^-7 m thick
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concept of modern physic biser 6 edition chapter 4 problem 43 clear.What fraction of a beam of 7.7 - MeV alpha particles incident upon a golf foil 3.0 x 10^-7 m thick is scattered by less than 1 degree.
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