Explain Gravatational , Electromagnetic , Strong Nuclear and Weak Nuclear Forces #GravitationalForce: a) The gravitational force is the mutual force of attraction between any two objects by virtue of their masses. It is a universal force. b) It plays an important role in the formation and evolution of stars, galaxies and galactic clusters. #ElectromagneticForce: a) For a fixed distance, electromagnetic force between protons is 10^36 times the gravitational force between them. b) Electromagnetic force is the base for the structure of atoms and molecules. c) Gravity is always attractive, while electromagnetic force may be attractive or repulsive. #StrongNuclearForce: a) The strong nuclear force binds protons and neutrons in a nucleus. b) This is strongest of all fundamental forces and about 100 times stronger than electromagnetic force. c) It is charge independent and acts equally between Proton - Proton, Neutron - Neutron, and Proton -Neutron. d) Its range is very...