can someone PLEASE help me with this physics question? please show work, I WILL RATE YOU GOOD

(30 pts.) A charged rod is placed near an uncharged, nonconducting sphere suspended from a nonconducting wire, as shown below. Neither the rod nor anything else touches the sphere. +++++++++++++++++ FIGURE 2 (a) (10 pts.) Will the rod and sphere exert forces on each other? If not, explain why. If so, comment on the strength of the force and make a sketch showing the direction of the forces. (b) (10 pts.) Would your answer to (a) change if the sphere were made out of a conducting material? How? Explain. (c) (10 pts.) What is the total charge on the sphere after the rod is placed close (but does not touch) it? Explain