2. Using the free-body diagram you drew write down an expression for the net force on the proton in terms of Jr, R. d. and e {Remember that the charge on a proton is +3). Your answer should be a sum or difference of two terms. Is this net force attractive or repulsive? {4 points) Fnet = 3. Now assume R = 1 mm and calculate the magnitude of the net electrostatic force on the dipole by the proton. Note: some calculators can have trouble subtracting two numbers that are so similar. When you're in this situation, it's best to gure out another way to arrange your variables. Dne triclt is to combine them with a common denominator; another is to use a very precise online calculator {Google can do it]. {4 points}