[填空题]
A uniform circular plate of radius 2R has a circuf;z)gr r 1i0crlar hole of radius R cut out p/*bvrr+g6v a of it. The center g 6*ar+b vpr/vof the smaller circle is a distance 0.80R from the center C of the larger circle, Fig. 7–41. What is the position of the center of mass of the plate? [Hint: Try subtraction.] R
