6. The minimum value of coefficient of friction (u)
such that block of mass '5 kg' remains at rest is
5 kg
μ
ng
3 kg
(1) 0.3
(3) 0.6
(2) 0.5
(4) 0.4

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay