Find what is the mass of the unknown atom

Reference no: EM13663375

A neon atom (m=20.0 u) makes a perfectly elastic collision with another atom at rest. After the impact, the neon atom travels away at a 55.6^o angle from its original direction and the unknown atom travels away at a -50.0^o angle. Find what is the mass (in u) of the unknown atom?

Reference no: EM13663375

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