$62 \times 10^7 \mathrm{~J}$

$7.0 \times 10^7 \mathrm{~J}$

$8.0 \times 10^7 \mathrm{~J}$

$82 \times 10^7 \mathrm{~J}$

The range for weak nuclear force is shortest among all four forces.

The range for electromagnetic force is smaller than that for gravitation force.

The relative strength of gravitational force is higher than that for weak nuclear force.

The relative strength for weak nuclear force is larger than that for strong nuclear force.

-0.85 eV

-1.70 eV

0

-0.425 eV

$1 \times 10^{-13}(\mathop {\rm{A}}\limits^{\rm{o}})^3$

$1 \times 10^{-10}(\mathop {\rm{A}}\limits^{\rm{o}})^3$

$1 \times 10^{-15}(\mathop {\rm{A}}\limits^{\rm{o}})^3$

$1 \times 10^{-17}(\mathop {\rm{A}}\limits^{\rm{o}})^3$