Acid's release protons, or hydrogen ions.
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Answer:
Conductors allow electric charges to move freely
The relativistic formula for the momentum of a particle of mass m and moving at speed v is

where c is the speed of light.
In our problem, the speed in terms of c is

, and the mass (still written in terms of c) is

. Substituting these values in the previous formula, we can find the value of the momentum of the proton: