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Statement of a problem № 2542

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The nucleus of an atom has a mass of 3.80 x 10^—25 kg and is at rest. The nucleus is radioactive and suddenly ejects a particle of mass 6.6 x 10^—27 kg and speed 1.5 x 10^7 m/s. Find the recoil speed of the nucleus that is left behind.

Solution:
The nucleus of an atom has a mass of 3.80 x 10^—25 kg and is at rest. The nucl

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