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1. A helium nucleus has a mass of 4.001505 u. What is its binding energy?

2. A free neutron is an unstable particle and beta decays into a proton with the emission of an electron. How much kinetic energy is available in the decay?

3. The Large Hadron Collider at Europe's CERN facility is designed to produce 7.0 TeV (that is, 7.0 X 1012 eV) protons. Calculate the speed, momentum, and total energy of the protons.

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