A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ=147.4nmλ=147.4nm What is the at

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answerhappygod
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A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ=147.4nmλ=147.4nm What is the at

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A hydrogen atom, initially at rest, absorbs an ultraviolet
photon with a wavelength of λ=147.4nmλ=147.4nm
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?
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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