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A lithium-5 nucleus (5Li) is moving along the horizontal x-axis at 2.25 Mm/s when it decays...

A lithium-5 nucleus (5Li) is moving along the horizontal x-axis at 2.25 Mm/s when it decays into a proton (1H) and an alpha particle (4He). The alpha particle is detected moving at 1.48 Mm/s at 23.6∘ above the x-axis to the original velocity of the 5Li nucleus

A. Find the magnitude of the proton’s velocity.

B. Find the direction of the proton’s velocity.

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