Answer:
Explanation:
a ) Gravitational potential energy = - GMm/ r , G is universal gravitational constant , M and m are masses at distance r .
Putting the given values
Potential energy = -6.67 x 10⁻¹¹ x (1.67 x 10⁻²⁷)² / 2 x 10⁻¹⁵
=- 18.60 x 10⁻⁵⁰ J
=- 18.60 X 10⁻⁵⁰ / (1.6 x 10⁻¹⁹ x 10⁶) MeV
= - 11.62 x 10⁻³⁷ MeV
b ) electric potential energy = k q₁ x q₂ / r , k is constant which is equal to 9 x 10⁹ , q₁ and q₂ are charges and r is distance between charges
putting the values for two proton
= 9 x 10⁹ x ( 1.6 x 10⁻¹⁹ )² / 2 x 10⁻¹⁵ J
= 11.52 x 10⁻¹⁴ J
= 11.52 x 10⁻¹⁴ / (1.6 X 10⁻¹⁹ X 10⁶) MeV
= + .72 MeV
c ) energy of nuclear attraction = - 10 MeV.
It is more than energy of nuclear repulsion by more than 10 times.
