A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ=182.9nm . What is the atom's fi

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answerhappygod
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A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ=182.9nm . What is the atom's fi

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A hydrogen atom, initially at rest, absorbs an ultraviolet
photon with a wavelength of λ=182.9nm .
What is the atom's final speed if it now emits an identical
photon in a direction that is perpendicular to the direction of
motion of the original photon?
Express your answer to three significant figures and include
appropriate units.
What is the atom's final speed if it now emits an identical
photon in a direction that is opposite to the direction of motion
of the original photon?
Express your answer to three significant figures and include
appropriate units.
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