A cardinal (Richmondena cardinalis) of mass 4.00102 kg and a baseball of mass 0.143 kg have the same kinetic energy.

A cardinal (Richmondena cardinalis) of mass 4.00×10−2 kg and a baseball of mass 0.143 kg have the same kinetic energy. What is the ratio of the cardinal’s magnitude p_c of momentum to the magnitude p_b of the baseball’s momentum?

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