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A hydrogen atom (mass = 1.66 xx 10^(-27)...

A hydrogen atom `(mass = 1.66 xx 10^(-27)` kg "ionzation potential" = 13.6eV)`, moving width a velocity `6.24 xx 10^(4) m s^(-1)` makes a completely inelastic head-on collision with another stationary hydrogen atom. Both atoms are in the ground state before collision . Up to what state either one atom may be excited?

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