Two point charges, +q and −q, lie on a circle with radius R in the x-y plane, R is 60degrees from the x-axis: l/_

a) Calculate the x-component of the force that the +q charge exerts on the −q charge.
b) Calculate the y-component of the force that the +q charge exerts on the −q charge.
c) Calculate the x-component of the electric field at the origin.
d) Calculate the y-component of the electric field at the origin.

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