Chapter 2, Problem 4P

1. Plot the force of attraction (in newtons) versus separation (in inches) between two unlike charges of $2\text{μC}\text{.}$
2. Use a range of 1 in. to 10 in. in 1 in. increments. Comment on the shape of the curve. Is it linear or nonlinear? What does it tell you about plotting a function whose magnitude is affected by a squared term in the denominator of the equation?
3. Using the plot of part (a), find the force of attraction at a 2.5 in. separation.
4. Calculate the force of attraction with a 2.5 in. separation and compare with the result of part (b).