Consider three charged bodies P,Q and R. If P and Q repel each other and P attracts R, what is the nature of force between Q and R ?

A charged rod P attracts rod R whereas P repels another charged rod Q.What type of force is developed between Q and R ?

-10mu C, 40 mu C and q are the charges on three identical conductors P,Q and R respectively, Now P and Q attract each other with a force F when they are separated by a distance d. Now P and Q are made in contact with each other and then separated . Again Q and R are touched and they are separated by a distance 'd' . The repulsive force between Q and R is 4F . Then the charge q is:

If P is the husband of Q and R is the mother of S and Q, what is R to P?

For three vectors p, q and r, if r = 3p + 4q and 2r = p - 3q, then