need help to set up problem? partA: suppose all the electrons in a quantity of carbon atoms with a mass m were located at the North Pole of the earth and all the protons at the south pole. what would be the total force of attraction exerted on each grup of charges by the other? The atomic number of carbon is 6, and the atomic mass of carbon isMc. use E0 for the permittivity of free space, e for the magnitude of the charge on an electron,NA for avagadro,s #' and Re for the radius of the earth. partB: What would be the magnitude of the force exerted by the charges in part (a) on a third charge that is equal to the charge at the south pole, and located at a point on the surface of the earth at the equator? part c: what would be the direction of this force?