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4.One beryllium atom (? ≅ 8.00 ?) decays into two helium atoms (? ≅ 4.00 ?)...

4.One beryllium atom (? ≅ 8.00 ?) decays into two helium atoms (? ≅ 4.00 ?) releasing 92.0 ??? of energy. The beryllium atom was initially moving with energy 40.0 ???. Find the velocities of both atoms after decay and the angles of their paths relative to the axis along which the beryllium was moving.

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