Two protons are released from rest, one from location 1 and another from location 2. when these two protons reach location 3, the first proton has a speed that is 2 times the speed of the second proton. if the electric potentials at locations 1 and 2 are 231 v and 115 v, respectively, what is the electric potential at location 3?

76.66V

Explanation:

Accorging to law of conservation of energy:

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Since the protons are released from rest, the initial kinetic energy is zero and the electric potencial energy is given by:

Now from , we have:

Recall that , replacing:

Rewriting (1) for :

Now, equaling (2) and (3):

Finally, rewriting for

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