What is the speed of the unknown nucleus

Reference no: EM13261371

You are at the controls of a particle accelerator, sending a beam of 3.90×107m/s protons (mass m ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. All such protons rebound with a speed of 3.60×107m/s . Assume that the initial speed of the target nucleus is negligible and the collision is elastic.

Part A Find the mass of one nucleus of the unknown element. Express your answer in terms of the proton mass m .

Part B What is the speed of the unknown nucleus immediately after such a collision?

Reference no: EM13261371

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