What are the coordinates of C' after a dilation of k=3 and a center of (0,0)? C'(-1,3)
C'(3,-1)
C'(-3,1)
C'(-3,9)

Consider symmetrically placed rectangular insulators with uniformly charged distributions of equal magnitude as shown. x y −−−−−− what is the direction of the net field at the origin?

What is the value of x in the diagram below?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).