In the quark model of fundamental particles, a proton is composed of three quark

Question

In the quark model of fundamental particles, a proton is composed of three quarks: two "up" quarks, each having charge +2e/3, and one "down" quark, having charge -e/3. Suppose that the three quarks are equidistant from one another. Take that separation distance to be 1.16 times 10^-15 m and calculate the electric potential energy of the system of only, the two up quarks. 5.51 times 10^-1 MeV You are correct. Your receipt no. is 167-7043 Calculate the electric potential energy of all three quarks. 1.77* 10^-13 J

Explanation / Answer

Electric potential energy of all three quarks:

Ue = 9x10^9[q1q2/r +q2q3/r+q1q3/r]

= {9x10^9/1.16x10^-15}[4e2/9-2e2/9-2e2/9]

= 0

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