What is the speed of the thorium nucleus

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A nucleus is moving in the direction at 4.8x10^5 m/s when it decays into an alpha particle (4He) and a 234Th nucleus.

Part A If the alpha particle moves off at 36 degrees above the axis with a speed of 2.0×10^7 m/s , what is the speed of the thorium nucleus?

Part B What is the direction of the motion of the thorium nucleus?

Reference no: EM13541265

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