What will be the ratio of the radii of two nuclei of mass numbers `A_(1)` and `A_(2)` ?

Compare the radii of the nuclei of mass numbers 27 and 64.

In a particular fission process of atom at rest Fragents with mass number A_(1) and A_(2) are produced. A goodd estimate of te ratio of kinetic energies of the fragments , K_(1)//K_(2) is.

Let A_(0)A_(1)A_(2)A_(3)A_(4)A_(5) be a regular hexagon inscribed in acircle of unit radius. Then the product of the length of the line segments A_(0)A_(1),A_(0)A_(2)andA_(0)A_(4) is

In the figure the blocks A, B and C of mass m each, have acceleration a_(1), a_(2) and a_(3) respectively. F_(1) and F_2 are external forces of magnitudes 2 mg and mg respectively.