February 21, 2017

Homework Help: Physics

Posted by Anonymous on Thursday, February 6, 2014 at 6:35pm.

An atomic nucleus of radon initially moving at 530 m/s emits an alpha particle in the direction of its velocity, and the new nucleus slows to 410 m/s. If the alpha particle has a mass of 4u, and the original nucleus of radon had a mass of 222u, what speed does the alpha particle have when it is emitted?

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